For me, the systems I’ve installed Mint on for people, haven’t had any problems at this current time. While I have never had an issue using Fedora myself(never been interested enough in OpenSUSE to keep with it when I’ve tried it), I’ll never recommend Fedora in similar cases where I’ve installed Mint. The machines were older and the users aren’t Linux enthusiasts. They just want a working machine to do basic tasks without breaking their bank to get a new machine when their Windows OS reached EOL.
However I can’t confirm or explain why the people you say that are doing this challenge are having problems. I don’t know their hardware specs and I don’t know them so I don’t know what they know about Linux.
(Please note, to all Mint users, I’m not saying Mint is only for non-Linux enthusiasts. I love how Mint is good for the non-enthusiasts and enthusiasts alike).