I used it for two years next to WebEx and it is the worst of all. Not only UX is the worst (cannot have a normal channel, everything is a thread, you cannot change alignment of messages) also the rate of people complaining their Teams does not work was staggering.

You can have a channel, of sorts. You add people to a giant group message and change the title.

Voila. Channel. You need to know someone in the channel to add you to the channel, but suddenly you can avoid that threaded bullshit.

God I hate using teams

I didn't know it did anything apart from Chat and Video. Perhaps that's why I don't have any problem with it.

What am I missing?

The whole Sites/Channels thing is annoying. If you ignore that part and just use the 1:1 chats / ad hoc group chats and video calls it's fine.