Can we please wait until wayland can actually replace x11

Unfortunately there's always devs that refuse to change so long as their setup still works, even if there's significantly better alternatives. The only option for dealing with them is to rip off the bandaid. Either they'll put in the work to keep up or they'll fall into obscurity

Meanwhile, my OS switched to Wayland while updating at some point and I didn't even notice.

I think if you have some use-case that Wayland doesn't fulfill, it's totally fine to just pin some version of Plasma and stick with it. Maybe even switch to Trinity. Chances are it will keep working for like a decade or more.

I still use kdenlive 18.08, because I know how to use that version, and it does what I need it to do perfectly well. They broke something I needed in 19.whatever (I don't remember what it was anymore), so I just pinned it and kept using it ever since. Maybe one day I'll try to figure out the latest version, but there's no real incentive for me to do so.