The last 2 companies I've worked at in the UK have used G Suite / Workspace and therefore Meet. It integrates well and runs well in the browser. No complaints here.
I use Google Meet on Firefox on Linux, and haven't noticed any excessive power use; and the laptop fan stays slow.
In fact, of the video conference systems I have used at work, Google Meet is the only one that works perfectly on Firefox, without having to use Chromium or even a dedicated flatpak package.
On Chrome on Windows. Otherwise it turns on the jet engine mode on laptop cooling / energy consumption.