Hello, I am used to making mistakes so I need a OS and home backup 
I was fine with timeshift, but i noticed Btrfs-assistant is better for Fedora.
Mayi know if i did everything well?
Snapper >Select config root > new
Snapper >Select config home new
Snapper settings: see pic
btrfs maintance: see pic
This will help a lot 
In the second screenshot, you don’t have timeline snapshots enabled so you won’t be getting any snapshots unless you take them manually or through some other means.
In the third screenshot, you don’t need to select all. You only need to pick one mountpoint from each filesystem.
Yes. That should work.
Again many thanks, have a nice day.
