I caught mumps at around 30, during one outbreak thanks to the proliferation of antivax garbage. Only about half of kids in some London boroughs were fully vaccinated, centered around a couple of the wealthiest areas--and that was nearly 20 years ago. (Meanwhile, I was indeed fully vaccinated as a kid. It's not foolproof, and especially not forever.)
Thankfully recovered just fine without complications, but that really was NOT much fun. Adults are pretty much guaranteed to get sicker, even if they're otherwise fairly young and healthy--and lucky enough to avoid any of the serious complications which are likelier to occur.
I also use Garuda. While I wouldn't normally suggest an Arch-based distro to someone newer, the developers there did a pretty good job at making it more approachable and user friendly for people who aren't used to Arch.
The default BTRFS filesystem setup with automatic Snapper snapshots at each update also gives some extra stability insurance to the rolling release. If an update does temporarily screw something up (as very occasionally happens)--or you manage to do something to the system yourself--you can just boot using a previous system snapshot until the issue is fixed. Another reason I would recommend Garuda where I wouldn't necessarily suggest Arch or most derivatives.