Maybe you just don't have a reasonable comparison. We just switched from Slack and Zoom to Teams and it has significantly impacted our ability to collaborate and communicate. It's constantly dropping calls, video quality is awful, annotation is awful, the layout is wasteful with tons of wasted space, audio is terrible, there's no closed captioning visible while screen sharing, there are too many problems to list. It's the type of product I'd expect from a high school programming class, not a trillion dollar company.