Nvidia driver fails to start, leading to side effects like being unable to detect a second monitor. Regression occurs with other 6.3 line kernels too. Does not occur with 6.2.15 and below.
Lenovo Legion Ryzen 5600H RTX 3060M
Upon some cursory searching, found this mailing list message that may be relevant: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036173
If more relevant there, may need to be messenger pigeoned to the RPM fusion maintainer of the nvidia driver.
If corresponding patch https://gitlab.gnome.org/GNOME/gtk/-/commit/d6fe6f495a52de47927bf17ce3bc492a971c025f to the fix already present in 4.6.4 is backported to the gtk3 package the mutter issue should be cleared for both 3+4, or can wait til the next gtk3 release