I find that MS Teams works pretty well if you don't put too many channels in a team, or at least don't use the extra features in the sub-channels. Nothing like having wiki/files spread across multiple channels under a team as opposed to a directory structure.

To me, what I really don't like is that you can present the files and wiki via network file share, but the format of the wiki is read-only in that mode... it would be significantly better as user editable markdown with front-matter. It's some strange quasi-html extensions that you aren't going to be able to really even use.

I don't like that they separated the chat channels out... you now have unread, channels, chats, meeting chats... going between them is now a mess as I'm usually in a combination of meeting chats and 1:1 chats mostly.

While I do appreciate the integration of outlook's calendar, I really don't want meeting notifications for anything more than a couple days out... it can wait until I check my mail.

The real time video chat is okay... I think Zoom and Slack both have lightly better video quality and features though. I don't like Zoom's chat/discussion features nearly as much... I like Slack overall slightly better, but don't think some of the externalized integrations are as good as Teams.

Overall, it's "okay"... I don't love it as I think it's gotten worse over time while Slack is getting better, slowly. I'm not vocal enough to raise hell one way or another for/against it. I've used it on Linux without much issue... so it works well enough.