gdm should already fallback to an x11 greeter (with wayland user sessions filtered out from the login choices) on nvidia binary driver configs, could you enable debug in /etc/gdm3/custom.conf (uncomment the corresponding line), reboot and share the journal log?
gdm should already fallback to an x11 greeter (with wayland user sessions filtered out from the login choices) on nvidia binary driver configs, could you enable debug in /etc/gdm3/ custom. conf (uncomment the corresponding line), reboot and share the journal log?