That RDP screen sharing is very interesting. Does it require an open session attached to a real screen, or is starting headless remote sessions possible?
Interesting, I just posted a question to Reddit about this[1] but I have been testing and using KRdp myself for a while. I'm one of those users who (due to blah blah blah) must use Wayland, but also must have some remote desktop capability (to connext to my Linux GUI environment).
For this reason, I was stuck on Fedora GNOME for a long while, because only they had it.
KRdp[2][3] looks promising, even though (like GNOME) it requires a GUI session to exist first, before you can connect via RDP. But there are ways to deal with that if you really gotta have it.
But this support is not actually implemented in any app in KDE Plasma 6, is it? My understanding is that it is possible, but there is no built-in functionality to take advantage of it. More "you can build an RDP server now that will work on Wayland" than "there is an RDP server that has been released". (I think?)
I believe[1] this is just attaching to an open session.
From what I have read, login sessions require integration with a login manager, and from what I understand that work isn't done yet (this work being a prerequisite).
It seems[2] that gnome is going to support this in a future release (march?)?
I'm sure KDE will have something similar in the works eventually. I currently use xrdp/xorg-xrdp for headless remote login sessions, and while it works ok, I would love to switch to using something more integrated into kde itself.
also in next point Plasma releases we'll focus to make its experience more out of the box, to be able to configure it from System Settings and what not
