I’ve had good luck keeping the home partition and just reinstalling the OS. Set it up with the same user name and home directory and you’re done.

It’s mostly The Sims with mods along with whatever meme games she’s hearing about on YouTube. There’s no concern about rootkit anti-cheat or anything, and so far my experience has been almost anything on Steam will run in Linux without having to do anything. She’ll run into performance issues with her current hardware before she hits any games that aren’t compatible.

This is a great suggestion. Especially the not breaking it part.

My daughter is very Linux curious but she’s not going to want to learn anything about it. She just wants to play games and chat with friends. I’ll probably switch her when I upgrade and pass my current computer down.