ak1dd Is there something I'm missing there?
As far as Solus is concerned, the KDE edition is very immature. Last Friday was the first update when it's been available, and I suspect that there will be pretty rapid progress. I was able to create a VirtualBox Solus Plasma VM on which I could play various games, and which had no problem going to full-screen.
However, there are enough nits in Plasma that I don't yet use it for serious computing. If the Budgie DE weren't so good, I'd probably spend a lot more time with Plasma, and eventually I'd probably like it a lot more. But Budgie IS available, and it's almost too good to be true.
I've changed to Solus 4.1 Budgie on my dev workstation, and today I removed the Plasma VM from VirtualBox. I still have both Budgie and Mate VMs on my daily-use laptop, and just don't need the third VM right now. I'm patient enough to wait a while and try it again.
The Solus development team is incredibly capable, and I'm sure that the Plasma edition will improve dramatically over the next few weeks, starting with today's upgrades. Meanwhile, you might take a look at my favorite DE. You might actually like it!