This HN article now has nearly 600 comments of people – mostly – griping about Teams. A large number of them are replied to with people saying "Oh, it's never done that for me!" or, alternatively, "Teams never works fully, but at least X works" being replied to by "X has literally never worked for me". They're all right. I've had vast numbers of random errors – like the application bars just disappearing, or a thousand and one "Sorry, Something Went Wrong™!" errors, but fundamentally, it's indescribably awful.
Periodically I'm asked to give feedback about how a call went. I always give one star. I'm not cruel and petty – it genuinely is always one star, where with my hardware, Zoom is pretty much real-time HD audio and video. People chop in or chop out, or I hear fan noise, or I wasn't able to join the link in Chrome because – well, it recognises that it's in Chrome but the version numbers don't match, and it thus asks me to download Chrome or Edge to join in Chrome – whatever. Microsoft must know that it's made a dog, and a very, very positive take would be that they want to make it better by having a larger base of competent developers to call upon to basically bug and betatest.
If I worked there, I'd have jumped ship at the acquisition, however...