We use Zoom at work and that is quite good. I used Teams, Jitsi, BigBlueButton and Citrix and so far Zoom has had the least problems (Citrix being a close second place). It also has clients for all major platforms and OS.
Their latest update greatly improved the chat functionality (in my opinion) and it is slowly replacing all other internal communication channels (mail/phone).
Yeah…I honestly didn’t look where this was posted. The text alone didn’t quite make the privacy focus obvious.