The problem isn't really with Wayland not working though, it's with other software not being caught up to work fully with wayland.

For example, in X, I can have my single screen windows work laptop display to my multi-monitor linux machine with remmina and be able to interact with the laptop as if it had multiple monitors.

Remmina cannot do this with Wayland as far as I have been able to determine.

Clearly not the fault of Wayland, but also kind of a pain in the ass that there are issues like this since some other maintainers/devs haven't implemented what is required in their software yet.