Similar issue reported:
https://lists.gnu.org/archive/html/help-guix/2025-03/msg00151.html
Additional details:
$ echo $GIO_EXTRA_MODULES
$ guix shell epiphany --search-paths
export
PATH="/gnu/store/a4pnp03dn5xp16d2w72m0vsfmwlkk0xc-profile/bin${PATH:+:}$PATH"
export
XDG_DATA_DIRS="/gnu/store/a4
When using Guix as package manager on a foreign distribution (Pure OS
Byzantium) and after installing some GNOME package (GNOME Web -
Epiphany), it exposes some files, which are processed during the user's
login resulting in a login failure.
Way to reproduce:
$ guix install epiphany
$ sudo reboot