A crash once a week is terrible. If Windows still crashed that regularly people wouldn't be saying "no biggie".

When Plasma crashes, all programs keep running. The only noticable thing (to me) is that the order of my apps in the task bar is different.

It just means the task bar disappears for 2 seconds and then it pops back because it relaunches. Everything else stays in place just fine.

In fact the same happens on Windows a lot when explorer.exe crashes. People often don't even notice it.

I experience similar windows crashes regularly on my old asus laptop. It’s likely from the asus drivers. The screen gets black for a fraction of a second and the explorer.exe restarts.

you mean windows that's well known for its BSOD? that one?