Maybe hiring is overly biased toward agreeableness but both ends of that spectrum are really bad, one end has people-pleasers and yes-people who provided no feedback but give a false confidence that they do, but at the other end is folks who shut down every idea because they don't immediately know how it can be implemented or it doesn't immediately pass their existing filters.

I think there's a middle path and I think I'd try to apply it interviews, rather than "just" daily life and work, and that's to assume there's something of value where the other party is coming from, and use your creative powers to try to find that value. Make an attempt to understand the other party with an understanding that your thought process may have to play with things it reactively thinks are bad and solve within that framework before either rejecting the bad thing or finding out it's wrong.

Don't blanket accept or reject their mission statement or tech stack, come with a creative curiosity about it.