Can you elaborate?
- Provides GNOME's system management features with i3's productive workflow.
- Enables new users a fast and fun way to try out a tiling window manager.
I should be able to use awesome (my favourite and only tiling manager) on top of KDE but I haven't yet found the time to do it (and I really need my machine to work, can't afford to spend an evening to know how to add a wifi widget or figure out why closing the lid doesn't put the laptop to sleep (or the opposite)).
You can set the KDEWM environment variable to replace kwin with something else; described here https://userbase.kde.org/Tutorials/Using_Other_Window_Manage...
I would guess that it will take some configuration of awesome similar to how they configure i3, to make plasma behave properly under a tiling wm, though. Maybe you could base that off the i3 config they provide in that tutorial.
P.S: You can use i3 as your window manager in Plasma desktop without too much hassle. You just have to tell it to allow i3 to manage windows instead of KWin
So far KDE is the closest to my needs and wants (very fast rendering, very fast dolphin, consistent UI, fast window switching and managing, the whole thing feels very snappy[0]). I just configured some shortcuts to manage windows approximately like I do in awesome-wm (tiling manager).
There are still thing that I don't like in it (configuration manager is overloaded with options and I don't always find my way through it).
I wish someone would do a regolith for KDE :).
[0] Truth be told I like the simplicity of the Gnome WM but it's way too sluggish.