Timeshift snapshots are taking a very big amount of space on my SSD

What filesystem do you use ?

Timeshift depends on the capabilities of the underlying filesystem.

  • With ext3/4 snapshots are heavyweight, (because ext3/4 has no internal snapshot-capability)
  • With btrfs snapshots are lightweight (because snapshots are part of the design of btrfs)

You can find good Information about Btrfs in the wiki

Whenever my system breaks, i do a :mag: rollback :smiling_face_with_three_hearts:

I do have separate snapshots for / and for /home. (with snapper)

You can split your snapshots into segments if you use different subvolumes in btrfs and different snapper configurations for them.