I remember doing speed dating once for a laugh, and woman who was more into me than me her was boasting how she’d done this before and asked this guy how he’d voted in the 2016 referendum and was pleased with herself when after he said he’d voted leave, he couldn’t explain why he had. Instead of turning the tables on her and getting her to explain why she’d voted remain (all vibes I could tell) I just said “oh right” and smiled.
I voted Remain but I remember refusing to tell people in my office which way I thought they should vote. And I find nothing more obnoxious, smug or an indication of a false sense of superiority than judging other people on how they vote.