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> Wayland is 15 years old.
So, it's not very sudden, then, is it?
So much of what people see as wrong in Wayland is about slow-moving applications and driver vendors refusing to adapt; waiting until their software is actually broken before they do anything. We've had more than a decade knowing full well what is coming. I sympathize that an application you rely on is caught up in that. Nobody wanted that situation. But X11 has had a pretty good life. And unless Talon on Linux is suddenly abandoned, I really doubt those developers are going to keep hitching their wagon to X11. At some point, (probably soon now that distributors are getting serious about it), they will take a look at what's new and they will make it work with Wayland.
With that said, I don't think you have to worry for a while. I doubt apps are ever going to stop working in X11 altogether. You might end up with a different desktop at some point if you're using GNOME or KDE, but that's all.