Per the title, which wayland RDP servers are you using?
Note that this is asking for servers, not clients. I do not want to connect to an RDP server. I want to serve an RDP session that any RDP-compatible client can connect to.
With the official release of 26.04 LTS, X11 is now (kind of) gone from Ubuntu. XRDP is officially unsupported on 26.04 with Gnome. Really it didn't work in 25.10 either, but this is an LTS release so it actually counts for something.
A brand new fresh install of Ubuntu Desktop using default settings results in an environment that lets you apt install xrdp and xorgxrdp, but then will fail to work because the X server can't create a session. The documentation is basically non-existent for this which kinda sucks and people will jump and say "just do x instead of y". Yes, there are other solutions that can work. Most people don't want to reconfigure their set of tools to get a functional computer on an LTS release.
The built-in RDP server fortunately now works, but it's pretty slow for multiple monitors over a crappy network connection leading to lag that makes typing and clicking inaccurate/hard to accept. Is there a better option? My Windows RDP still blows this out of the water entirely and I hate that. I want something equally as good. Xrdp was filling that gap mostly, but now it's dead until it adds Wayland support.