Borg an Restic should both be able to do that. I personally use Borg on my Storagebox and have scripts on all my devices that push periodic backups.

True, but it’s still in beta and Pangolin has other useful features like built in geoblocking and authentication.

Look mommy, I made big poo poo.

Arch for Gaming/Desktop, Debian for Server/Proxmox/VPS.

This. I just moved from Nginx Proxy Manager + Headscale/Tailscale to Pangolin and it’s incredibly easy.

Yes, but I also want to run the client in a container and the docs recommend to run the container using network_mode: host. And I suspect this creates a conflict in networks. So I want to have Netbird server, Netbird client and Nginx Proxy Manager all in containers share the same network.

Network effects.

It’s not primarily made for monitoring, but Dockhand has a lot of great monitoring for your whole host and for individual containers.

+1 I love the easy integration of Gotify.

If your current setup is satisfying your needs don’t change it. Linux Mint is quite similar to Debian when it comes to the base.
If you want to try and learn new thing maybe look into Bash scripting or Docker. Think of something useful you would like to have and try creating it.