Enabling compositor on startup gives the effect shown second in the video.
Grouped windows are not displayed using the "Present Windows" desktop effect when clicked in the icons-only task manager after upgrading to Plasma 5.14.4
Yeah, the “Present Windows” desktop effect requires the compositor to be running. Whichever backend you use, you can toggle the compositor on and off with Shift+Alt+F12, I think.
But if I simply change the Backend Renderer am I enabling the compositor?
I don’t know, but to see whether it is currently enabled or not, try running:
$ qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.active
To enable it, run:
$ qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.resume
To disable it, run:
$ qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.suspend
Always learning with you guys.
I used the commands you just told me to and went to the settings to enable OpenGL 3.1 and back to 2.0. Just by doing that (selecting a backend renderer) it enables compositor.