From being in a company with places across all of Europe, I've also found that "heated" means very different things in different places. Like, I'm exaggerating a little bit, but the calm discussion where to get dinner in Spain can be a lot more energetic than a very heated discussion about a strategic problem between some Brits and Germans.

But with less jest - I think we have a very good discussion culture in the team at work. No one on the team is scared to disagree, or to point out that this doesn't seem to go towards a positive direction. It's just not a heated discussion.

At times during these planning sessions, we just sit in silent thought and maybe doodling something in Excalidraw or on paper for a few minutes until someone is like "I need more input on X", or "So I have a rough plan I think?" or "I think there is an issue with that idea", even if it's not clear why - if 2 or 3 people are vaguely not fine with something, it's probably a bad idea. And we've also started to learn each others tells if we're not happy.