I recently made a post discussing my move to Linux on Fedora, and it's been going great. But today I think I have now become truly part of this community. I ran a command that borked my bootloader and had to do a fresh install. Learned my lesson with modifying the bootloader without first doing thorough investigation lol.
Fortunately I kept my /home on its own partition, so this shouldn't be too bad to get back up and running as desired.
Keeping
/homeseparate is a good call. I can also recommend backups to a different system. Also test those backups.Playing with things can be fun if that is what you enjoy. Being careful is good but the best way to avoid serious issues is being able to recover from the worst case.