In addition to 7839284023's suggestions, if you're making regular backups and not performing partial updates, I think it's unlikely you'll tank your OS and if you do, you got the backups. You mentioned debian and things to avoid post-install - if you're looking for something as invaluable and concentrated as dontbreakdebian, you won't find it with Arch (outside of simply pointing to the wiki).
EndeavourOS has their own wiki . I get the impression they were/are attempting to translate the Arch wiki to a more succinct and ingestible format, but many of the articles are several years old so I'd recommend vetting those that are applicable to your use case.
EndeavourOS has their own wiki . I get the impression they were/are attempting to translate the Arch wiki to a more succinct and ingestible format, but many of the articles are several years old so I'd recommend vetting those that are applicable to your use case.