I've found both AWS Lambda and all Azure serverless tooling to be extremely frustrating. "Just don't do local development" is the feedback I see a lot, which just seems bonkers to me. Like the orgs that don't run tests locally and just use CI to validate builds. If your workflow involves long periods of waiting to test even very basic functionality, it is (to me) totally broken.

We have containers which unify local environment and production environment. In my opinion (and experience), there aren't any more efficient shared mediums to work with.