IMO, deciding to go “serverless” or not usually ends up with about the same amount of work as far as writing code and configuration goes.

Things like “serverless” or firebase data stores or even html hybrid app frameworks, for example, are designed more so for simple proof of concept apps. As soon as you begin any sort of serious pipeline development, deep configuration for special case, scaling, etc. you’ll find these easy to use services and ideas limit your control overall. Vendor lock-in is just a benefit of “configuration-free” systems which is a side effect of people not willing to rtfm.