Everyone at Amazon (The only company I have seen using it) hated using Chime, and it wasn't at all on the level of competitors. So I think it was just an unsuccessful product.

Every product has its hate, but everyone is rarely true. Personally (no longer at Amazon) I was impressed by Chime. It was simple, but rock solid, handling large calls well. Teams is still worse for me (>9 people display is bad, even in MS Edge, when on Linux). Zoom has a finicky interface.

Early in the pandemic I had to use many different systems as an academic, when lots of different contacts pivoted online in different ways. Chime was the least of my problems; it just worked when many other systems struggled.

I liked the Chime meeting/calendar integration at Amazon that could ring everyone at the start of the meeting, meaning that most meetings started promptly.

Slack huddles use chime under the hood.

So, what are AWS TAMs going to use to have meetings with customers? Chime was really awful.

On the other hand, at Amazon, people I know like Chime. Sad its going away.