Everybody I know has used Zoom at this point, and has thus seen what dead-simple and "just works" telecom software can be (not to mention FaceTime, which seems to revel in "your never-owned-a-computer grandparent is happy to use this").
I use Teams in enterprise, and Zoom for college. At this point I pretty firmly believe Zoom is hot garbage. Teams syncs with Outlook, and basically every org I interacts with uses Outlook and has Office365 at this point.
Teams hasn't been crashy, is responsive, doesn't eat memory, etc. At this point I personally cannot point to why there is so much hate for Teams. Either that or my organisation is doing something well to make it work well.