Earlier quoted context omitted.
Had a meeting tonight with over 50 participants. Screen sharing. Not a single hitch or problem. In the past tried multiple times with Hangouts (dies after you get more than 4 on board), jitsi meet (not good with bad connections), Slack (good luck with video), Hipchat (video doesn't work for more than 3 participants) and Skype (connection drops). On one of my previous gigs, we ditched everything and took Mumble + goog…
In the real world you cannot have everything. Fast, cheap, reliable, scalable, secure, easy to use, os agnostic. Pick several or be disappointed about the theoretical perfect company that should exist and provide all.
It is not resistant to government/owner monitoring (and this is a separate thing from "secure"), but even if they did add true E2E, they'd still be a proprietary software often running on proprietary OS.