At best you learn some basic formatting and table calculations, there’s no need to get specific into MS word/excel. There’s essentially no difference between MS and Libre office here. Same with the operating system, if you’re just sitting in an office, reading and answering emails in a browser you don’t have to care about the OS.
Besides, school should teach critical thinking and how to transfer skills, not shoehorn pupils into specific roles and software.
You can always compile from scratch, compare the checksums or use the version you compiled. In projects this large people usually do this, and there’s a certain level of trust that these checks have been performed.
Mint looks quite similar, and if she asks “Microsoft applied an update and now the start menu looks different.”
If all she does is browse the internet and read emails, she’ll never know the difference. You could even set up the splash screen to display the Windows logo or just disable it all together.
Both Futurama and Family Guy were cancelled early in their runs in 2002/2003 and only revived years later. Firefly was cancelled around the same time and just never revived.
In the small grocery store around the corner where I live the cashier’s are listening to music, having phone calls with their earplugs in or watching videos with their phones lying near the register. The work is boring and repetitive, customer interaction is quite minimal there anyway because they are really fast in ringing you up anyway. And that’s everything I care about anyway. They can enjoy their day a bit more and I can get to doing what I enjoy fast, too.
Wikipedia itself is pretty great, the company and its marketing behind it, not so much.
https://www.dailydot.com/debug/wikipedia-endownemnt-fundraising/
Proton serves privacy, not anonymity. They will not collect, harvest, analyse or sell your data. If you however use their services for illegal things they will forward whatever - usually little - unencrypted information they have about you.