It seems disingenuous to call it the first. AWS has it's own time series db. In terms of open source Apache druid had a managed cloud variant that imply.io runs.
AWS obviously just AWS.
Based on Imply Cloud website it looks like it too is just AWS.
Timescale Cloud gives you freedom to choose your own cloud provider, and lets you migrate between clouds with a few clicks.
I’m fairly certain we are the first to offer that, but I’m open to any counter examples.
Can something like this be provided? Not sure if the network latency between different cloud providers would allow doing a multi-master replication scheme.
I guess there are always trade-offs in the software world.
Since TimescaleDB is also open-source, if you want that kind of replication scheme, you can always install on VMs across clouds. However, as you rightly pointed out, network latency is a definite concern and impacts the feasibility of RPO and RTO.
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.