[mfreed]

One thing to add:

The Timescale Cloud does allow you to do is create asynchronous read replicas across different clouds and regions (with a couple clicks).

You can then "fork" a read replica (at any point in time) and make it a primary to start serving out of that cloud (again, with just a couple clicks).

That's not quite the same as auto-replication/failover between clouds, but getting pretty far there.