Meet using tons of CPU / GPU resources? How to fix?

[icrew]

This has been happening forever, but I'm finally getting around to asking:

On my mac (macOS Monterey 12.6 on a 2019 MacBook Pro with an Intel i9 and 32GB of RAM), Meet uses tons of processes, and lots of CPU and GPU time, and makes the fans go nuts/makes it uncomfortably hot to have on my lap. See the screenshot below for an example of what it looks like when I'm in a Meet meeting.

This happens regardless of whether I'm using Meet from Chrome (natively or via the PWA) or from Safari, so it's definitely not a cookies/cache/etc. issue. It also doesn't happen when I'm using Zoom, so it's not a more generic videoconferencing issue.

Any other ideas?

Thanks!