Restic, it has native S3 compatibility and when you combine with something like B2 it makes amazing offsite storage so you can enjoy the tried and true 3-2-1 backup strategy.
Also fedora magazine did a few posts on setting it up with systemd that makes it SUPER EASY to get going if you need a guide.
I have an ansible role that configures it on everyone’s laptops so that they have local, NAS, and remote, B2, backup locations.
Works like a charm for the past 8+ years.
Didn’t work at all for me. Tried it when stimulants were nearly impossible to get. I gave it a few months too. When I was finally able to stimulants again I was able to get back on track with things. That being said I’ve heard for some people it’s worked well. Though no one I know in person has found that to be the case, so YMMV