This is a part that probably varies a lot individually...I'm a slow thinker, and have a hard time reacting to fully formed ideas thrown at me thrown at me over a table. The other side coming with fully prepared for the discussion, while on the receiving end you need to do your homework realtime also doesn't help.
If it's random brainstorming it doesn't matter a lot. If it's an actually important topics, it feels like a DDOS on your brain when you actually want to take time to understand the implications. Then sure, some situations require speed, but I don't see that many of them in day to day life. "What you think about moving to X framework for our metrics ?" can probably wait for 30 min. and not be a realtime exchange.
> it's very uncomfortable to be on a zoom call for more than about 45 minutes at a time.
I've finding these meetings way more comfortable in remote...someone can be rambling for as long as they need, the effect on everyone's productivity is that much reduced. Same for people who speak very slowly actually, it's a lot less stress IMO and easier to engage when paradoxically you don't need to be 100% looking at them in the eyes.