Yup me too. Just got out of working at a B2B SaaS that was 100% AWS serverless - Lambda, S3, dynamoDB and all that.

I worked there for 3 years! When I started 3 years ago - the owners touted the benefits of all of it. And I agree its not all totally bad. There are some valid use cases for small enterprise projects.

BUT after 3 years it was really starting to wear me down. The codebase just kept growing, there were so many lambdas to keep track of. It was so hard to test and observe the system in production. Sure you can address some of these pitfalls by creating your own tools that wrap AWS API calls but it never ends. It doesn't make your life easier, you still have to write a bunch of extra glue code because a lot of the tooling for these serverless platforms is terrible and left up to frameworks to solve.