> Make sure they have at least a passing familiarity with Windows and it's apps because like it or not Windows is still the default in the school and working world so they'll have to work with that stuff to some degree

Don't bother. I would have said that I was "familiar with Windows", I used 3.11, NT 4.0, XP, Vista, and 10 to a lesser extent and my wife needed help with her work laptop. Honestly Windows 11 is significantly different and apparently hostile enough that I couldn't find anything.