I suspect some of the problems are not due to Wayland, but due to Ubuntu.

I recently revived a decade-old PC with a dual-boot setup: Windows 10 and Ubuntu 24.04. While Windows ran fine, Ubuntu was a nightmare—constant freezes, random logouts, and daily crashes.

After hitting my limit, I wiped Ubuntu and installed Debian. What a difference! It’s been months without a single crash. If you're struggling with stability on older hardware, Debian might be the "boring" (in a good way) solution you need.