Sigh... The number of excuses GNOME people can come up for their own failings is astonishing. Thomas, if you run: $ wayland-info then, somewhere alongside the descriptions of each output, should be their respective EDID blobs. Would you please send them here, so that I can see if some accurate information can be extracted? 
Sure! Here you go:

interface: 'wl_shm', version: 1, name: 1
 formats (fourcc):
 0x38344241 = 'AB48'
 0x38344258 = 'XB48'
 0x48344241 = 'AB4H'
 0x48344258 = 'XB4H'
 0x30334241 = 'AB30'
 0x30334258 = 'XB30'
 0x36314752 = 'RG16'
 0x35314152 = 'RA15'
 0x35315852 = 'RX15'
 0x32314152 = 'RA12'
 0x32315852 = 'RX12'
 0x34324742 = 'BG24'
 0x34324241 = 'AB24'
 0x34324258 = 'XB24'
 1 = 'XR24'
 0 = 'AR24'
interface: 'wl_drm', version: 2, name: 2
interface: 'zwp_linux_dmabuf_v1', version: 4, name: 3
 main device: 0xE280
 tranche
 target device: 0xE280
 flags: none
 formats (fourcc) and modifiers (names):
 0x48344241 = 'AB4H'; 0x00ffffffffffffff = INVALID
 0x48344241 = 'AB4H'; 0x0000000000000000 = LINEAR
 0x48344258 = 'XB4H'; 0x00ffffffffffffff = INVALID
 0x48344258 = 'XB4H'; 0x0000000000000000 = LINEAR
 0x38344241 = 'AB48'; 0x00ffffffffffffff = INVALID
 0x38344241 = 'AB48'; 0x0000000000000000 = LINEAR
 0x38344258 = 'XB48'; 0x00ffffffffffffff = INVALID
 0x38344258 = 'XB48'; 0x0000000000000000 = LINEAR
 0x30335241 = 'AR30'; 0x00ffffffffffffff = INVALID
 0x30335241 = 'AR30'; 0x0000000000000000 = LINEAR
 0x30335258 = 'XR30'; 0x00ffffffffffffff = INVALID
 0x30335258 = 'XR30'; 0x0000000000000000 = LINEAR
 0x30334241 = 'AB30'; 0x00ffffffffffffff = INVALID
 0x30334241 = 'AB30'; 0x0000000000000000 = LINEAR
 0x30334258 = 'XB30'; 0x00ffffffffffffff = INVALID
 0x30334258 = 'XB30'; 0x0000000000000000 = LINEAR
 0x34325241 = 'AR24'; 0x00ffffffffffffff = INVALID
 0x34325241 = 'AR24'; 0x0000000000000000 = LINEAR
 0x34324241 = 'AB24'; 0x00ffffffffffffff = INVALID
 0x34324241 = 'AB24'; 0x0000000000000000 = LINEAR
 0x34325258 = 'XR24'; 0x00ffffffffffffff = INVALID
 0x34325258 = 'XR24'; 0x0000000000000000 = LINEAR
 0x34324258 = 'XB24'; 0x00ffffffffffffff = INVALID
 0x34324258 = 'XB24'; 0x0000000000000000 = LINEAR
 0x35315241 = 'AR15'; 0x00ffffffffffffff = INVALID
 0x35315241 = 'AR15'; 0x0000000000000000 = LINEAR
 0x36314752 = 'RG16'; 0x00ffffffffffffff = INVALID
 0x36314752 = 'RG16'; 0x0000000000000000 = LINEAR
 0x20203852 = 'R8 '; 0x00ffffffffffffff = INVALID
 0x20203852 = 'R8 '; 0x0000000000000000 = LINEAR
 0x20363152 = 'R16 '; 0x00ffffffffffffff = INVALID
 0x20363152 = 'R16 '; 0x0000000000000000 = LINEAR
 0x38385247 = 'GR88'; 0x00ffffffffffffff = INVALID
 0x38385247 = 'GR88'; 0x0000000000000000 = LINEAR
 0x32335247 = 'GR32'; 0x00ffffffffffffff = INVALID
 0x32335247 = 'GR32'; 0x0000000000000000 = LINEAR
 0x39565559 = 'YUV9'; 0x00ffffffffffffff = INVALID
 0x39565559 = 'YUV9'; 0x0000000000000000 = LINEAR
 0x31315559 = 'YU11'; 0x00ffffffffffffff = INVALID
 0x31315559 = 'YU11'; 0x0000000000000000 = LINEAR
 0x32315559 = 'YU12'; 0x00ffffffffffffff = INVALID
 0x32315559 = 'YU12'; 0x0000000000000000 = LINEAR
 0x36315559 = 'YU16'; 0x00ffffffffffffff = INVALID
 0x36315559 = 'YU16'; 0x0000000000000000 = LINEAR
 0x34325559 = 'YU24'; 0x00ffffffffffffff = INVALID
 0x34325559 = 'YU24'; 0x0000000000000000 = LINEAR
 0x39555659 = 'YVU9'; 0x00ffffffffffffff = INVALID
 0x39555659 = 'YVU9'; 0x0000000000000000 = LINEAR
 0x31315659 = 'YV11'; 0x00ffffffffffffff = INVALID
 0x31315659 = 'YV11'; 0x0000000000000000 = LINEAR
 0x32315659 = 'YV12'; 0x00ffffffffffffff = INVALID
 0x32315659 = 'YV12'; 0x0000000000000000 = LINEAR
 0x36315659 = 'YV16'; 0x00ffffffffffffff = INVALID
 0x36315659 = 'YV16'; 0x0000000000000000 = LINEAR
 0x34325659 = 'YV24'; 0x00ffffffffffffff = INVALID
 0x34325659 = 'YV24'; 0x0000000000000000 = LINEAR
 0x3231564e = 'NV12'; 0x00ffffffffffffff = INVALID
 0x3231564e = 'NV12'; 0x0000000000000000 = LINEAR
 0x30313050 = 'P010'; 0x00ffffffffffffff = INVALID
 0x30313050 = 'P010'; 0x0000000000000000 = LINEAR
 0x32313050 = 'P012'; 0x00ffffffffffffff = INVALID
 0x32313050 = 'P012'; 0x0000000000000000 = LINEAR
 0x36313050 = 'P016'; 0x00ffffffffffffff = INVALID
 0x36313050 = 'P016'; 0x0000000000000000 = LINEAR
 0x30333050 = 'P030'; 0x00ffffffffffffff = INVALID
 0x30333050 = 'P030'; 0x0000000000000000 = LINEAR
 0x3631564e = 'NV16'; 0x00ffffffffffffff = INVALID
 0x3631564e = 'NV16'; 0x0000000000000000 = LINEAR
 0x56555941 = 'AYUV'; 0x00ffffffffffffff = INVALID
 0x56555941 = 'AYUV'; 0x0000000000000000 = LINEAR
 0x56555958 = 'XYUV'; 0x00ffffffffffffff = INVALID
 0x56555958 = 'XYUV'; 0x0000000000000000 = LINEAR
 0x30313459 = 'Y410'; 0x00ffffffffffffff = INVALID
 0x30313459 = 'Y410'; 0x0000000000000000 = LINEAR
 0x32313459 = 'Y412'; 0x00ffffffffffffff = INVALID
 0x32313459 = 'Y412'; 0x0000000000000000 = LINEAR
 0x36313459 = 'Y416'; 0x00ffffffffffffff = INVALID
 0x36313459 = 'Y416'; 0x0000000000000000 = LINEAR
 0x56595559 = 'YUYV'; 0x00ffffffffffffff = INVALID
 0x56595559 = 'YUYV'; 0x0000000000000000 = LINEAR
 0x59565955 = 'UYVY'; 0x00ffffffffffffff = INVALID
 0x59565955 = 'UYVY'; 0x0000000000000000 = LINEAR
 0x30313259 = 'Y210'; 0x00ffffffffffffff = INVALID
 0x30313259 = 'Y210'; 0x0000000000000000 = LINEAR
 0x32313259 = 'Y212'; 0x00ffffffffffffff = INVALID
 0x32313259 = 'Y212'; 0x0000000000000000 = LINEAR
 0x36313259 = 'Y216'; 0x00ffffffffffffff = INVALID
 0x36313259 = 'Y216'; 0x0000000000000000 = LINEAR
interface: 'wl_compositor', version: 6, name: 4
interface: 'wl_subcompositor', version: 1, name: 5
interface: 'wl_data_device_manager', version: 3, name: 6
interface: 'zwlr_export_dmabuf_manager_v1', version: 1, name: 7
interface: 'zwlr_data_control_manager_v1', version: 2, name: 8
interface: 'zwlr_gamma_control_manager_v1', version: 1, name: 9
interface: 'zwp_primary_selection_device_manager_v1', version: 1, name: 10
interface: 'wp_viewporter', version: 1, name: 11
interface: 'zwlr_output_power_manager_v1', version: 1, name: 12
interface: 'xdg_wm_base', version: 5, name: 13
interface: 'wl_seat', version: 8, name: 14
 name: seat0
 capabilities: pointer keyboard
 keyboard repeat rate: 25
 keyboard repeat delay: 600
interface: 'wp_presentation', version: 1, name: 15
 presentation clock id: 1 (CLOCK_MONOTONIC)
interface: 'org_kde_kwin_idle', version: 1, name: 16
interface: 'zwlr_layer_shell_v1', version: 4, name: 17
interface: 'org_kde_kwin_server_decoration_manager', version: 1, name: 18
interface: 'zxdg_decoration_manager_v1', version: 1, name: 19
interface: 'zxdg_output_manager_v1', version: 3, name: 20
 xdg_output_v1
 output: 49
 name: 'HDMI-A-1'
 description: 'TXD HDMI J257M96B00FL (HDMI-A-1)'
 logical_x: 0, logical_y: 0
 logical_width: 1920, logical_height: 1080
interface: 'zwlr_output_manager_v1', version: 4, name: 21
interface: 'zwlr_input_inhibit_manager_v1', version: 1, name: 22
interface: 'zwp_keyboard_shortcuts_inhibit_manager_v1', version: 1, name: 23
interface: 'zext_workspace_manager_v1', version: 1, name: 24
interface: 'zwp_pointer_constraints_v1', version: 1, name: 25
interface: 'zwp_relative_pointer_manager_v1', version: 1, name: 26
interface: 'zwp_virtual_keyboard_manager_v1', version: 1, name: 27
interface: 'zwlr_virtual_pointer_manager_v1', version: 2, name: 28
interface: 'zwlr_foreign_toplevel_manager_v1', version: 3, name: 29
interface: 'wp_drm_lease_device_v1', version: 1, name: 30
interface: 'zwp_tablet_manager_v2', version: 1, name: 31
interface: 'zwp_idle_inhibit_manager_v1', version: 1, name: 32
interface: 'zxdg_exporter_v1', version: 1, name: 33
interface: 'zxdg_importer_v1', version: 1, name: 34
interface: 'zxdg_exporter_v2', version: 1, name: 35
interface: 'zxdg_importer_v2', version: 1, name: 36
interface: 'zwp_pointer_gestures_v1', version: 3, name: 37
interface: 'zwp_text_input_manager_v3', version: 1, name: 38
interface: 'zwp_input_method_manager_v2', version: 1, name: 39
interface: 'xdg_activation_v1', version: 1, name: 40
interface: 'ext_session_lock_manager_v1', version: 1, name: 41
interface: 'wp_single_pixel_buffer_manager_v1', version: 1, name: 42
interface: 'xwayland_shell_v1', version: 1, name: 43
interface: 'hyprland_toplevel_export_manager_v1', version: 2, name: 44
interface: 'wp_fractional_scale_manager_v1', version: 1, name: 45
interface: 'zwp_text_input_manager_v1', version: 1, name: 46
interface: 'hyprland_global_shortcuts_manager_v1', version: 1, name: 47
interface: 'zwlr_screencopy_manager_v1', version: 3, name: 48
interface: 'wl_output', version: 4, name: 49
 name: HDMI-A-1
 description: TXD HDMI J257M96B00FL (HDMI-A-1)
 x: 0, y: 0, scale: 1,
 physical_width: 0 mm, physical_height: 0 mm,
 make: 'TXD', model: 'HDMI',
 subpixel_orientation: unknown, output_transform: normal,
 mode:
 width: 1920 px, height: 1080 px, refresh: 59.718 Hz,
 flags: current