I’d argue that if you’re doing serverless right you should be abstracting away the particulars of the serverless provider and implementing your functions in an provider agnostic way.

A good example would be using something like apex/gateway which simply proxies lambda requests to golang standard http handlers. Virtually elminating vendor lock-in.

I think serverless has a place (yes even for business logic) but like anything you have to pick the right took for the job.

Apex/gateway: https://github.com/apex/gateway