Backups do not need to be complicated, and can be set and forget for the most part. Lots of good stuff here, with lots of reading. The basics I think is having 2 backups, one local and one offsite. My simple setup is a Time Machine backup which is great for work with hourly backups and super easy restore of your whole system or individual files if and when needed.
2nd backup I use is an offsite cloud backup. I use BackBlaze. I have no affiliation with them, just a content user. This runs in the background and has unlimited backup storage. This backs up the entire computer, as well as external drives if you select them to backup as well. First backup can take a while as it is. uploading everything to the cloud, but after that you don't even notice that it is running.
www.backblaze.com