The Bazzite KDE version is a great option if you want an easy-to-use Linux system. As long as you install apps from the built-in Bazaar store, it’s hard to mess anything up, and it already includes most of the software you’ll need so it usually works well out of the box.
If your friend has to troubleshoot issues on bazzite, it’s better not to install extra system packages on top of the core OS (“layering”), because that can sometimes cause problems and make things harder to fix.
You can also set up a tool called Winboat, which lets you run Windows inside Bazzite; it integrates nicely and isn’t too difficult to configure.
Bazzite is the first recommendation if the apps your friend needs are available on Flathub. If they need more complex software that only comes as Debian (.deb) packages, Linux Mint is probably a better choice because installing non‑Flatpak apps there is much easier, although the trade‑off is that installing a lot of extra packages can potentially break the system if you are not careful. If they mostly stick to the Mint software store, it should stay stable and they are unlikely to run into problems.
This is what worked for me If you want to run it without a VM: I suggest getting a licence to crossover. Then you can download the office 2016 Iso here https://www.heidoc.net/joomla/technology-science/microsoft/technology-science/microsoft/8-office-2016-direct-download-links and buy a cheap licence online. Mount the Iso onto your computer then in crossover search office 2016 and then as the installer select the exe from the mounted Iso. This way you get native integration so when you open an excel file from Linux it will just open excel. Here is an older video explaining the method https://m.youtube.com/watch?v=WB8uqE5_8s0&pp=ygUhT2ZmaWNlIDIwMTYgTGludXggc2V0dXAgY3Jvc3NvdmVy