I think the Linux thing is machine dependent. I used a Dell Latitude something-or-other (7490? idk) for about 3 years, but it was the version that shipped with Ubuntu. Rock solid on Slack, and Teams mostly just had company-wide issues for us. But my colleague with the same model laptop and same Ubuntu version had no end to trouble with both Slack and Teams - turns out, the Windows version of the laptop had different internals and it struggled mightily. It was mostly GPU issues. Just thought that was interesting, mine is probably not a useful anecdote.