I'm curious what you mean by "no animations while playing games"?
I like Wayland and use it on my laptop. But I also have Nvidia on my PC and while it's janky at places, I don't get all the problems you describe (at least on i3 for me)
I use multiple monitors with different refresh rates and don't really have any major issue. It syncs with the highest one. I indeed don't use a compositor because it's distracting and also turn off all the composition pipe line stuff. The result of turning off the latter is less latency and a teeny tiny bit of tearing in the lower 3rd when scrolling web pages but that's it.
Games can run utilize gsync when in-game vsync is enabled so long as you disable the second monitor with xrandr.
It was annoying at first for me too but they tell you how to bypass it, so can't you just use the flag
--break-system-packages
and make it an alias for pip?