The converse is that many people including me have experienced issues with X11. I've been using X11 on BSD/Linux for 25 years and it's been a poor experience involving researching how to get a specific GPU to work correctly every time I installed BSD/Linux. This was especially frustrating when Windows/MacOS always just worked fine out of the box on the same hardware. When Debian switched to Wayland a few years back it was literally the first time in over 20 years that I had a working Linux desktop out of the box that didn't have basic issues like screen tearing. I appreciate the legacy X11 has left us but Wayland literally just works with no trouble across several machines I own.