Many of them work without having to install anything. You could try a live boot USB and see what of them doesn't work to get an idea how difficult it'll be.
(possibly needless) anecdote
My dad is a Windows "power user" and it's funny trying to talk to him about Linux because there are so many things unique to Windows that were essentially OS problems foisted onto "power users" that he is concerned about and a lot of them don't really apply (e.g. anti-virus, drive letters, installing drivers for everything, etc.).