I don't miss desktop progress the way it was done on Linux between 2000 and 2015 (ish). It was exciting but now, I'm happy with what I have with Plasma 5. It is a fast, stable, solid desktop environment.

Plasma 5 is great and ages like good wine. The interface does not change much, but receives big improvements each version that don't break habits. Focus is on fixing usability bugs. See the weekly posts at [1] for instance.

It gets refined instead of changed.

[1] https://pointieststick.com/