I personally don't get it. You can start on GCP today, without being tied to GCP much at all. It isn't even expensive to do so. Is there something I'm missing here?
Cloud Functions are just a http handler with no hard dependencies on GCP.
Cloud Tasks are just a handler and the tasks just hit your Cloud Functions.
Cloud SQL is just postgres.
You connect your github with actions that CI/CD auto deploy to the above.
If you do it that way, you're pretty much dependency free and can move anywhere else if you need to.
Cloud Functions are just a http handler with no hard dependencies on GCP.
Cloud Tasks are just a handler and the tasks just hit your Cloud Functions.
Cloud SQL is just postgres.
You connect your github with actions that CI/CD auto deploy to the above.
If you do it that way, you're pretty much dependency free and can move anywhere else if you need to.