'zoom' tells you that you can video/audio call people, 'for developers' tells you that it has features that help with development. It's quite clear for me.
We could have said "Google Meet for developers", but Zoom is shorter. :)
But yeah, the point is that you can video chat and we are adding other integrations for developers. Pair programming is one, terminal and server sharing is coming.
The very first paragraph lists one of the features as "direct integration to the IDE so software developers can talk and collaborate in real-time". It doesn't sound to me as if it's aiming to support "100+ concurrent users". If it can help two programmers working remotely be as productive as they would be if they were sitting side by side, then I think it's a very useful product.
I’ve never been on a Zoom call with 100+ users. While Zoom supports that, it’s not the main use case. I think saying “zoom for x” is an appropriate and efficient way to describe collaboration apps.
To me "Zoom for x" implies video calling as a primary feature.