Which volumes need backup?

I've had my system running longer with the help of Docker and I'm wondering which containers/volumes I need to back up and which don't need to be backed up. I haven't found anything on the net or here about which volumes should be backed up and which don't need to be backed up. Can someone give me information about this?

TL;DR

The user is inquiring about which volumes need to be backed up for their system running on Docker. They mention that the volumes "appwrite-cache" and "appwrite-certificates" are not important but recommend backing them up. The user is seeking information on which volumes should be backed up and which ones can be skipped.