[cnj]

Answering your technical question: Some companies let you deploy their "building blocks" onto multiple clouds (you typically choose the exact region/availability zone), and then also allow you to build proper multi-cloud deployments. There is usually no switch to flip, but these deployments (if properly setup) should tolerate if one region/cloud goes down.

Two examples from the top of my head:

Confluent Kafka: https://developer.confluent.io/courses/hybrid-cloud/intro/ MongoDB Atlas: https://www.mongodb.com/docs/atlas/cluster-config/multi-clou...

For higher level services, I can't think of an example. For the examples above, you're still thinking at VM level, whereas you typically don't do that if you purchase a higher level service.