It's common in in-person meetings to "go around the room" and have everyone share their view on a topic. This is much harder over Zoom since everyone sees the group in a different order, and eye contact doesn't work. My thoughts:

Zoom should add a feature for a person running the meeting to organize this. It could let them choose an order for others and then guide the group through the process, with a number over each person's video to show the order, and highlighting to show whose turn it currently is.

People could explicitly tell Zoom to move on when it was the end of their turn, or the moderator could override it. The person who is "up next" might get a special alert.

More generally, if I were running Zoom, I would create a platform for anyone to write simple web app overlays to enable all kinds of these mediated interactions. A different app might let people in a large meeting vote +1 or -1 in real time to signal support for a choice.

Or a "brainstorm mode" could only support +1's that are directed at specific people and disappear after a few seconds. Or an "N minutes until meeting is over" reminder could flash and create common knowledge for everyone, rather than that burden being on the moderator.

The Zoom chat and the simple thumbs up signals aren't good enough. They're not integrated into the actual video and they shouldn't be. Different meetings and different cultures require different interactions, hence the need for a flexible platform.

We need company-appropriate sounds, graphics, and animations, rules for who gets prompted when and what each person can do, and varying levels of prominence and structure that can be crafted appropriately for the situation.

With enough of these, and some other improvements (like head tracking to stay appropriately zoomed in like FB Portal), I believe we can eventually get to the point where group meetings are more efficient over Zoom than they are in person.

This may sound too optimistic but you need to remember that in-person meetings are usually far from optimal. It takes a lot of work and skill to run a meeting well, and offloading this to the software could take a lot of burden off the moderator and greatly improve most meetings.