You can't be serious. Wayland is the opposite of modular, and the concept of an extensible protocol only creates fragmentation.
Every compositor needs to implement the giant core spec, or, realistically, rely on a shared library to implement it for them. Then every compositor can propose and implement arbitrary protocols of their own, which should also be supported by all client applications.
It's insanity. This thing is nearly two decades old, and I still have basic clipboard issues[1]. This esoteric cutouts feature has no chances of seeing stable real-world use in at least a decade from now.
How can Wayland be the opposite of modular and too extensible at the same time?
Isn't this something KDE-specific and because of using third-party program to manage clipboard? On Gnome, there is no Klipper and copy-paste works.
You can see the same problem in the XMPP world, with a lot of the extensions implemented only by a few applications. But at least most XMPP extensions are designed to be backwards-compatible with clients that don't support them.
Omg I thought I was going senile... copy & paste not working... I definitely pressed ctrl-c didn't I?
Bloody Wayland.
Shh...you're not supposed to mention these things alas you be down voted to death.
I also have tremendous issues with Plasma. Things such as graphics glitching in the alt+tab task switcher or Firefox choking the whole system when opening a single 4k PNG image. This is pre-alpha software... So back to X11 it is. Try again in another decade or two.