Just threw Zorin on my secondhand x220, but been using the Thinkpad as a low end test bench so that may change. Runs surprisingly well, although I do need a new battery soon ("dies" at ~40%).
Really surprised when I randomly found out that my tech illiterate friend was running Linux. Back in 2014 or so. Ubuntu. Was no big deal for her. It did everything she wanted.
My mother is very happy now. Bonus points she doesn't call me up and have me dismiss the Microsoft upsell every other update.
She says she doesn't want to break anything but I think she wants me to do it so she doesn't have to give it a nanosecond of a thought. Also she doesn't throw a fit every time she has to wait for updates to finish anymore!