I recall it using some different design philosophies behind managing windows than I was familiar with, I’d honestly just recommend trying it out in a live USB or a vm so you can see for yourself. It uses a desktop called Pantheon that they make specifically for elementary OS. Specifically, the X button on the window is in the top left, maximize is in the top right, and there’s no minimize button.

Wifi card drivers can be an issue, that you should be able to see in the live USB before you try installing though. It’s not a matter of any specific distribution and more whether or not your wifi card has working drivers.

My recommendation given where you are coming from would probably be something like elementary OS. https://elementary.io/

It has some differences in it’s workflow though, and if you don’t find that appealing I see that many others have already recommended distributions with Gnome such as Fedora.

If she absolutely needs desktop microsoft office, you can always consider trying winapps. It runs a full windows VM but makes the applications show up on the linux desktop like they were native applications. https://github.com/winapps-org/winapps

A couple months back I picked up a copy of Resident Evil 2 for the N64 at a retro shop nearby. Honestly a great way to play the game. I don’t really buy modern releases physically these days though since I play on PC.