xref-quit-and-goto-xref has no good keybinding. If you type TAB
in a web browser, do you expect it to close the current window
and open a link in a new window?
I suggested TAB because in Emacs, tab completes stuff and closes *completions*. So it's not consistent with web browsers but is consistent with emacs, as usual. I agree it's not a brilliant binding, but could we not focus efforts. changing the UI here and solve the actual bug first?