Care to give me an example to satisfy my morbid curiosity? I have used a lot of really bad chat clients over the year and Microsft's rewritten Skype is one of only a handful worse than Teams. Teams is not the worst but it is on my top 3 or 5 worst of the 30+ chat clients I have used. I have heard Lynk also was really bad but I never used it. Microsoft certainly has some of the worst.
Element is bad but it is way better than Teams from my experience.