I know that people never want to hear such remarks... At least I never want... But I risk being the idiot anyways: KDE/Plasma doesn't crash here so often. I've seen it actually happening in the last years. Unfortunately!!!! Maybe two or three times... And then, it just restarted in a matter of a second. It did not affect anything. No running apps crashed. Just the task bar and the desktop went away for a second.

How long have you tried, and how long are you now trying Gnome?