I had one unpleasant interview, with a bunch of different tech questions, where the interviewer was rude. Most of the questions I answered very well, and a few questions, I didn't remembered or I didn't know, which in my opinion, is acceptable.

An easy coding exercise at the beginning followed by a bunch of mostly theoretical questions from the programming language, frameworks, databases, concepts like microservices. Unfortunately the interviewer was from another project and couldn't answer my questions about the role.