Had a product skills interview for a platform PM position. Two interviewers with no experience in the domain that proceeded to make the entire conversation about user experience and topics like activation/retention instead of going into platforms topics like abstraction, platform boundaries. Totally useless segment on talking about a product I liked instead of the unique problems/challenges/value in the specific domain. Ended up closing the call early as they mentioned I did not have the necessary user insights - well good luck with success in a backend platforms domain with that kind of attitude, you're one of many companies in this field and nothing makes you special. If you want to succeed then listen to what experts have to say.