GNOME - Cannot login after 23.11-Upgrade

Yesterday I upgraded to stable channel 23.11. After that I can no longer login with any of my users. I get thrown back into the login screen.

This here is the journalctl-extract from my latest try:

Dez 07 12:57:06 flixos systemd[2229]: Starting GNOME Shell on Wayland...
Dez 07 12:57:06 flixos systemd[2229]: GNOME Shell on X11 was skipped because of an unmet condition check (ConditionEnvironment=XDG_SESSION_TYPE=x11).
Dez 07 12:57:06 flixos systemd[2229]: Started Application launched by gnome-session-binary.
Dez 07 12:57:06 flixos dbus-daemon[2240]: [session uid=1000 pid=2240] Activating via systemd: service name='org.gtk.vfs.Daemon' unit='gvfs-daemon.service' requested by '>
Dez 07 12:57:06 flixos systemd[2229]: Starting Virtual filesystem service...
Dez 07 12:57:06 flixos dbus-daemon[2240]: [session uid=1000 pid=2240] Successfully activated service 'org.gtk.vfs.Daemon'
Dez 07 12:57:06 flixos systemd[2229]: Started Virtual filesystem service.
Dez 07 12:57:06 flixos .gnome-shell-wr[2372]: Running GNOME Shell (using mutter 45.1) as a Wayland display server
Dez 07 12:57:06 flixos rtkit-daemon[1945]: Successfully made thread 2405 of process 2372 owned by '1000' RT at priority 20.
Dez 07 12:57:06 flixos .gnome-shell-wr[2372]: Made thread 'KMS thread' realtime scheduled
Dez 07 12:57:06 flixos .gnome-shell-wr[2372]: Device '/dev/dri/card0' prefers shadow buffer
Dez 07 12:57:06 flixos systemd[2229]: org.gnome.Shell@wayland.service: Main process exited, code=killed, status=9/KILL
Dez 07 12:57:06 flixos systemd[2229]: org.gnome.Shell@wayland.service: Failed with result 'signal'.
Dez 07 12:57:06 flixos systemd[2229]: Failed to start GNOME Shell on Wayland.
Dez 07 12:57:06 flixos systemd[2229]: org.gnome.Shell@wayland.service: Triggering OnFailure= dependencies.
Dez 07 12:57:06 flixos systemd[2229]: Stopped target GNOME Wayland Session.
Dez 07 12:57:06 flixos systemd[2229]: Stopping Virtual filesystem service...
Dez 07 12:57:06 flixos systemd[2229]: Stopped target GNOME Session Manager is ready.
Dez 07 12:57:06 flixos systemd[2229]: Stopped target GNOME Shell.
Dez 07 12:57:06 flixos systemd[2229]: Stopping GNOME Session Manager (session: gnome)...

It basically says nothing. Does someone have an idea? I reloaded my 23.05-system and it works. Currently I switched over to X11 for writing this post and debugging.

coredumpctl seems to not show anything regarding this problem. I have entries but they happened almost 2h ago.

Thank’s in advance.

(Redit-Thread)

By the power of the interwebs I found a solution. I added `

MUTTER_DEBUG_KMS_THREAD_TYPE=“user”;

to my sessionVariables as stated here Bug #2039340 “gnome-shell (login screen) crashes with SIGSEGV in...” : Bugs : gnome-shell package : Ubuntu

Mutter was mentioned in the coredumpctl but, as I said it has been hours since then.

This solution is fixing the actual problem BUT now my games lag. Any suggestions?