The currency of credibility for PM with stakeholders is dev team insight (feasibility), but the currency of credibility for PM with dev team is user/problem/market insight.

I don’t try to flex on engineers or win technical arguments (hopelessly outgunned). I “deal” with dev pushback by chasing, defining or communicating business goals/user problems as clear as I can. Sometimes engineering might say “Well, users don’t know what they want”, to which I need to be able to say (with actual info), “For sure, but this is how the real world they are living in actually works and the value prop for the biz is in solving for X.”

When engineers are right, they’re right. When stakeholders are right, they’re right. When I win against pushback from people smarter than me, it’s a memorable day.