After having switched from xorg to wayland, I now get a popup every time
I run virt-viewer, "The application virt-viewer wants to inhibit
shortcuts. You can restore shortcuts by pressing Super+Escape."

If I select Allow or Deny is irrelevant, neither option is remembered.

This seems to be a well-known bug according to google, there's a fix in
Gnome 42 here:

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5937

It even looks like it was previously fixed in gnome-shell 3.31.92-1
according to the changelog, so I assume the patch has been missed from
43 in Sid?

https://metadata.ftp-master.debian.org/changelogs//main/g/gnome-shell/gnome-shell_43.6-1_changelog

virt-viewer is 11.0-2 if that's relevant.

Regards.