Happy user of Sway for almost a year already(https://github.com/rvolosatovs/infrastructure/commit/b765860...). Some of the issues you mention I have experienced on X11, but they were fixed once I switched to Wayland. One of the most notable changes for me was hotplug - I struggled with it on X for many years, now it just works by default and I didn't even need to script anything(https://github.com/rvolosatovs/infrastructure/blob/0e17a1421... and I even wrote my own tool to handle this, because the X11 ecosystem is full of crap https://github.com/rvolosatovs/gorandr).

Overall, my Linux GUI experience has never been as smooth as it is now on Wayland and I tried pretty much all common DEs/WMs in last 8 years.

X11 is not even remotely close to being "there" compared to Wayland and if Gnome implementation sucks, then please first try better implementations first before writing comments like this.

No, Wayland protocol is not perfect and yes, some niche use cases are still not covered, which is why various extensions of the protocol are still being developed. X11 at it's current state is nothing but a collection of hacks glued together. Wayland is, however, a very robust, secure and well-designed modern protocol, which, most importantly and contrary to X11, actually works.