Nothing yet.

I have a few Windows 10 machines around, for example, the one that controls my CNC machine, and the one i use for CAD.

So far, zero issues, which is "better than it used to be".

I'll try it for the family and see what happens.

In the past, my dad used to set up Linux server machines for my Mom, which is what was there pre-mac-mini (he's a long time software engineer). They were just so finicky in practice (IE audio on webcam would stop working so she could never be sure a video chat she started would actually work, etc)

That did not last all that long. My mom started to avoid that desktop like the plague, so it ended up with Dad running Linux and Mom running Windows.