I currently have a secondary pool (with raidz2) that I was originally going to use for my important documents, such as storage for Paperless-ngx, as raidz offers corruption detection and repair. The pool is encrypted.
However, I’m concerned about rebuild times (it’s a pool of 4 22TB drives). Is btrfs a better choice for this use case, or should I just go with raidz like I originally planned?


Filesystem doesn’t really matter once you have a reliable, redundant off-site backup and recovery plan set up and tested.
Really, use what fs feels best for you. And do your backups.
Did I mention backups are important?