Absolutely, Johan is one of my all time favorite composers and as prolific and talented as he was, it's terrible that we will never hear new music from him again. :(
I also use backrest/restic on my NAS, but I went with a Hetzner StorageBox instead, a little cheaper for 1TB (I pay 5USD monthly including VAT, billed monthly too).
Me too, I highly recommend Hetzner Storage Box. It's cheap, and it works great (unlike their S3-compatible storage, which has been a huge fiasco since they launched it).
Could you elaborate on the issues with their S3 compatible storage? I've been considering it and haven't seen too many issues in my testing, beyond the lack of identity control.
I cannot say much about the quality, but I am also testing around with it at the moment. As for the identity control, you may be able to achieve this with a few extra steps, if you set up bucket policies for the credentials. For this, it would be a bit cleaner to move the storage box to a project of its own.
Fwiw, biometric login works fine for me. You need to install something like DuckDuckGo or Brave and set as default browser during setup. And only Google Password manager works for storing the passkey.