Comment by setsewerd

Tacking onto this I think the more important variable for ease of conversation is the extent to which someone's sense of identity is tied to their political beliefs.

E.g. I'm moderately left but I'll still engage in healthy conversation with right-leaning friends and acquaintances because I like to understand where they're coming from. However I have some friends who I love dearly but know that despite their intelligence and how much I enjoy their company, they've become very tribal in their politics, so I don't bother engaging in political discussions with them beyond basic diplomatic contributions. Or posing questions that offer new perspectives. I still trust them and value their friendship though.