Well when the crash happens and the screen shows an enormous amount of green artifacting, sure looks like a graphics driver and/or kernel issue to me. But yeah, I'm probably wrong because your experience is pristine. And the many hours of research I've done on this subject leads to the conclusion that there are issues with 6.13+ kernel, amdgpu driver, and Wayland, and especially if having more than one display connected (despite setting the refresh rates to the lowest common denominator).

But I'm sure I'm wrong and it's something completely different. Thanks for the insight.