The idea was to use the same paradigmes and practices as the Angular framework.

It's nice to have consistency between backend and frontend, but it is indeed a bit heavy and really not necessary most of the time.

Odd. Most people I know are trying to avoid OOP, particularly in the JS community.

I have also started using it pretty recently, and haven't had too much issue finding folks talking about any issues I've run into (and either found fixes for my issue, or at least workarounds while folks are currently working on fixes).

However, it still by default uses Express under the hood, though you can change that to Fastify or whatever else you like.

I'm using it for my side project, a highly productive framework; I can also say it's in use in some _very_ large corporations, although I cannot give details about that.