In my particular market sector it seems everyone is using some form of cloud functions (SAM, Serverless Framework etc), and migrating away from K8S/containers.
Regarding PaaS stuff like Heroku, the only people I know that are still using that are solo hackers.
That's interesting. In the latest Who Is Hiring discussion, there seems to be more than 10 times as many references to Kubernetes compared to serverless. https://news.ycombinator.com/item?id=31582796
Interesting, you're right, I see 3 occurrences for "lambda" and 26 for "kubernetes". It's probably just the paritcular "bubble" I live in.