I think I may have found a workaround (at least working for me, 7.0.5-1-default, G07 595.71.05):
https://bugzilla.suse.com/show_bug.cgi?id=1263825#c107
initcall_blacklist=sysfb_init in the kernel cmdline may work as a workaround. Downside: no early display until nvidia-drm loads (GRUB and BIOS output are unaffected, only the kernel boot phase has no display).