In practice for some applications, for my purposes X11 forwarding never really worked (due to GLX and bandwidth among other issues). So that's 50/50 anecdote. I just checked and it appears Wayland adoption has helped push apps to adopt EGL which helps. There are tradeoffs both ways but let's not pretend X11 is adequate for everyone or every application. Subjectively, when I use Gnome now it's by far better than any version of desktop Linux I used a decade or two ago.