Covered pretty poorly. I've let my AWS certs lapse because they're not worth the time to keep them up. The hard parts of my job have very little to do with "these AWS services exist", which is the extent of what I've gotten out of AWS certs.

(Nobody cares about SWF.)

Yeah, a serverless certification would be great. These certs are more foundational in scope.

I don't see why it would be, to be frank. "Serverless" is a how. It's a tool, not a solution, and you should be expected to pick up new tools without waving around a piece of paper saying you know a tool.

Except for button-pusher roles I've always hired for whys, not hows, and certification programs seem to never care about the whys. College degrees don't assert that you know how to learn, that you know how to derive the whys--but, in my experience, they correlate better than cert-hunting does.

AWS certification exams test for basic and foundational AWS knowledge. They don’t try to do anything other than that. The “whys” are learned in the field, certified or not.