For me (where our BE consists of maybe 100 endpoints) we’ve found the sweet spot to be Google AppEngine. Incredibly simple to deploy, we don’t really need to manage infrastructure or networking (although you can if you want), decent performance, plays well with other GCP services, great logging and observability, etc
We’ve tried deploying services on K8s, Lambda/Cloud Run, but in the end, the complexity just didn’t make sense.
I’m sure we could get better performance running our own Compute/EC2 instances, but then we need to manage that.
I think appengine is one of the most underrated "serverless" offerings out there. I deploy everything on it, with almost zero concern about infra or server architecture
My use cases are probably regarded as small/medium, which need a handful of instances running, which you can effectively scale down to zero with Googles free tier (basically allows you go goto 1 instance for free), so cost has not been a major consideration.
We’ve tried deploying services on K8s, Lambda/Cloud Run, but in the end, the complexity just didn’t make sense.
I’m sure we could get better performance running our own Compute/EC2 instances, but then we need to manage that.