I don’t think there’s a single valid point in that comment

This one? https://gitlab.gnome.org/chergert/ptyxis

Seems really cool, thanks for the tip!

X11 doesn’t support a number of modern features well (e.g. fractional scaling) and has a fundamentally insecure operational model that makes it hard to prevent keylogging/screengrabbing, and the developers found it so hard to evolve & work with over time that they decided to start over with a more modular and conservative approach.

While it was a painful transition, I believe it’s worth it. But I don’t think that the accessibility story has developed enough to make the deprecation of X11 a good idea…