I recently put my Dad on Linux. Elementary was a disaster- compatibility and app issues did us in. I'm so happy we moved on because I did not realize that we would have had upgrade issues too.
Manjaro, which was another mistake. I'm going to move him to Pop!_OS when I see him over the holidays and hopefully be done with this. He's very competent, but there are small issues with these distros that need extra care that I think should not require so much effort. Pop should be fine.