FYI, the Regions dropdown only has this single option. Could be related.

// And changing Runtime to v2 only allowed me to scale it up and down, it doesn't change the region availability.

At the time of this writing, it is not possible to migrate GCP volumes to metal.

GCP to metal volume migrations are actively being worked on as per the announcement above.

Ah, so I'll just have to wait a bit. Thx

You are welcome!

[Resolved] How do I migrate my Mongodb over to the new Railway Metal?