Every KDE app I try (and the Plasma desktop) seems so good on paper, and they promise me the world! Then, wen I actually try them out, they always end up crashing or doing something weird. Like I cannot stand GIMP, so I've tried using Krita, but I don't think I've ever managed to finish something in it before it crashes. It's the same with Kdenlive.
I've been using XFCE for a long time now. I often give GNOME and KDE Plasma a try, but I have to tweak GNOME so much to make it usable, and KDE Plasma keeps crashing and has weird issues (Steam friends list being delayed for example), which just got worse when they switched to Wayland. I really do feel like XFCE on x11 is the logical choice, it "just works" and every app runs well (Discord has broken hotkeys on Wayland), it's stable, and whenever people see my XFCE setup they think it's something like KDE Plasma because it looks so "good" (or different at least). It even works well even on my 32:9 aspect ratio monitor, which isn't something I can say about some other desktops.
I'm not against Wayland, but I think Wayland is currently not good for the Linux ecosystem. I've had lots of friends try Linux, and they've had issues with Discord global keyboard shortcuts not working, and window positions not restoring at application start, and lots of other small issues, which add up in the end. But once they switched to X11, they've all been very happy.
I've tried to use this, but I'm on multiple servers with tons of channels, and it gets a bit unwieldy without tabs. I also can't get it to minimize to tray, and having to "keep it open" at all times is somewhat annoying. I'll stick with Quassel for now.
Really impressive work though, you should be proud!
I've tried to run KDE Plasma for years, but it's just so unstable and buggy (I also think it looks bad, but that doesn't really matter). I recently had a friend that said "KDE Plasma is great now, give it a go!" so I did, and instantly broke it by installing a theme via the official themes manager, and I had lots of smaller issues, like the Steam notifications appear above the taskbar and the Steam Friends List being slow to open. I told my friend and he said "Oh, that's KDE Plasma and not just Linux being weird?" and he ended up switching desktop, realizing so many minor issues was due to KDE Plasma.