Back.Up
I use Carbon Copy Cloner (for years) for weekly total HD backups on 2TB HD locked up in a safe - and it’s bootable. Also use Mac’s TimeMachine 24/7. Of course my Mac is not a laptop. I travel a lot and use my phone, even for MS Office if I need to write something Cloud: iCloud, Dropbox, Box, OneDrive. And a paid password manager. IPhone was ripped off two years ago and I watched my phone migrate around the District of Columbia, with me posting messages, etc. After 24 hours I locked it. Day after that I wiped it and had my carrier kill it.
Sorry about the MacBook. Maybe an honest person will get hold of it and you’ll get it back.