Has there ever been ...

[Kai Uwe Broulik]

Hi,

I don't think we consider running KWin instead of Quartz Compositor a 
supported usecase, maybe that's where your glitches are coming from. /scnr

 > because kwin has been becoming more and more bloated over the 
versions leading up to 5.15, and filled with functionality I don't need.

Can you give some examples? We've been working on splitting many things 
out into separate plugins and making KWin core slimmer again.

 > I'm a firm believer in not fixing things that ain't broke

Plot twist: KDecoration1 was inefficient and old and had to be replaced. 
Unfortunately that also meant that virtually all alternative decorations 
were lost. (rip trusty Keramik)

To come back to the original question:

 > Has there ever been a KWin version that was just (or predominatly) a 
straight port of the latest KWin4 to Qt5 and KF5?

Maybe check out KWin from Plasma 5.0 then. It still had the old 
decoration lib. Depends on your definition of "straight port", do you 
include the necessary Xlib-to-XCB transition form Qt 4 to 5 part of a 
straight Qt 5 port?

Cheers