[Zababa]

Small story about that: I know someone that works in a small/medium company (~70 people) that started as a startup. The initial dev team was made of Scala devs, that used a microservice architecture. After a few years, Scala devs became too expansive for the company, so they slowly replaced them with PHP devs. The PHP devs weren't the best around, so they built a buggy and stateful monolith [1]. Now they are slowly switching to TypeScript with Nest and Next, again in a microservice pattern, with more experienced developers. They're trying to slowly replace the monolith (strangler pattern I think?). A few Scala microservices are still around, which takes an expensive dev to manage.

I don't have any conclusion about that story.

[1]: Important mention: "monolith" here isn't correlated with "buggy and stateful", you can build a stateless and bug-free monolith, just like you can build stateful and buggy microservices. It just happens to be the pattern they developed.