Of all those Zoom had the best balance of stability/resource use/call joinability
I find meet a PITA to set up and invite random people
WebRTC browser chat is great for rooms >= 6 people and is my preferred choice
But zoom works pretty well from 1:1 up to 500:1 and is very easy to join
Don't get me wrong, I hate the Zoom client but when the target audience is everyone in your company, including your PC illiterate middle managers, then I can see how Zoom is quite good