Don’t use compressed air on your fans while they’re plugged into the board! It generates current that feeds into your mobo. Usually nothing bad happens but there can be problems associated with it.
This, plus I’ve found corruption to be a way bigger issue on Windows. I had been using a Win10 install for about 5 years and eventually it just stopped booting and I had to reformat. Maybe it was my SSD, but I’ve been running Linux on that same SSD ever since then with 0 issues.
Depends on what you’re breaking I guess. If it’s DE stuff, kernel stuff, etc. Usually I just find a good YouTube tutorial if I want to learn something new and don’t know what I’m doing.
Realistically you don’t have to if you’re not constantly tinkering, but if you’re changing a lot of low-level stuff without knowing what you’re doing, you have the ability to break things. If you don’t know how to fix them, then it’s easier to just reformat. Basically it’s a skill issue lol.