Just bail out, it wasn’t meant to be. I tried a similar thing with family a few times and they always went back to Windows.
Linux is unfortunately not for people that aren’t at least a bit tech savvy. If you insist on them using Linux you’re gonna be on call to fix their shit all the time.
Yeah but things just work by default more often on Windows than on Linux. “Linux being Linux” is also the most common cause of Linux problems.
Linux usually does give you the tools to fix problems more easily than Windows but that’s where the tech savviness comes in.