Does Podman actually open the ports like Docker do? I was op the impression it did not. But it’s entirely possible that I might be wrong.

I would be disappointed if it did. I’m moving to Podman as well just because of the firewall issue in Docker.

Ive been looking for something like this. Please elaborate 🙂

Check out https://gadgetbridge.org/

I bought a Garmin 265 a couple of months ago after moving from iPhone/Apple Watch to GrapheneOS. I have never installed the Garmin app or created an account there. Most features of the watch works normally.