I booted in bios legacy mode?
What "weird bios options" could an old 2009 laptop bios possibly have, that are used by default on top of that and never caused any sort of issues with any other Linux distro before? The only ones that didn't run on that thing were both Nobara variants, which is likely more of an old gpu issue.
I've had many wayland issues on other distros before, but never this specific one. It's usually the same on every one, like blurry scaling, scaling affecting games, fsync causing frequent few seconds long blackscreens, or just a lot of game specific stuff. The issue here did not fix itself even after a reboot. I really don't care where the issue stems from, I can only say that this was very unique to OpenSUSE.