Hi there,

is there a reason that package.el sets up its own GnuPG homedir (in
package-import-keyring and package--check-signature-content)?

That choice does not work with Qubes OS and Split GPG [0].

Attached is a patch introducing a new user option to use the
default GnuPG home.

Best wishes
Jens

[0] https://github.com/QubesOS/qubes-issues/issues/2660