I really like Teams and what it brings to my team. But reading the comments here I'm the minority.
Personally I prefer Teams over Slack but I haven't used Teams in a large company. Formatting is nicer in Slack but I can't imagine why anyone would claim Slack is good for sharing code beyond basic one-liners. Teams allows me to carry over a video call from one device to another while Slack doesn't even allow me to queue a message when I'm on spotty WiFi. Threading on Teams is a bit unusual but Slack's multiple ways of viewing threads (only one of which shows new replies in real time) can also be annoying.
But I'm not representative of most of the people commenting here. I run stock Windows 11 with an Azure AD domain account on a Surface Studio Laptop, I do my development in WSL and my browsing in Edge. And for the most part, everything just works.