I'm not particularly fond of X11 but barely working in 2026 is hardly an endorsement of the whole project.
A good replacement of X11 would have had a well designed local mode that abstracted modern hardware in all configurations and an actually good network protocol.
We're left with a barely-working local mode with awful X11 stuck on top.
And we've moved to it for purely political reasons.
I'd say Wayland was "barely" working in 2021. When I say it works, I mean it works. Screen sharing (finally) works, remote desktop works, ICC profiles, etc etc.
I, for one, like Wayland's design. The problem was that it was incomplete and the implementations were buggy. Well, now the protocol is feature-complete and the implementations are solid.