Honest question: what is Google chat? I only know Hangouts, I did not know they had a Slack/Teams app as well? Or is this the very old app that was integrated into Gmail back in the day?
I have weekly Beaver meetings with my daughter using google chat and _every time_ nearly all the feeds are frozen.
Whereas my wife uses Zoom all day to talk to patients, with nary a hitch.
Google chat video is the worst I've ever used.
It's a team chat, included into Google Workspace (G Suite). It's not terrible, and not great. It runs in the browser and integrates with Gmail; is really slow; has 1-to-1 messages, groups, and rooms; rooms have threads to organize conversations, but you can't see a list, you just end up scrolling a lot.
I'm sure it'll die off soon, like everything that Google attempts that doesn't have a stellar launch and rapid growth rate.