For Mac my backup system is a big Time Machine hard drive for local backup plus Backblaze for offsite backup. Backblaze personal backup is automatic, it just backs up most things on your computer. It doesn’t do everything, skipping things like Applications and system files, but those are recoverable other ways than from offsite backup. Backblaze needs to see your computer once every 6 months, and any external hard drives you’re backing up every 30 days. The initial backup can be a bit slow, but limited by your upload speed (mine was in progress for ~1 month until I upgraded my internet to fiber and it finished overnight) but after that it only uploads deltas saving on time and bandwidth. For me, between Time Machine and Backblaze I have enough piece of mind to not really worry about the backups.
My kitchen doesn’t have a vent to the outside, so I’d have to open windows to deal with any smoke or fumes from cooking. Since I got the air purifier it kicks in when I cook and cleans the air in minutes. I’ve also noticed improvements with my allergies since getting one.