It sounds like you are the creator/a team member, so I just wanted to give you a data point.

My team used insomnia for a while. We were on the paid tier. My boss had us bail because of pain points we were having with syncing environments. People were overwriting changes on accident, and it was hard to coordinate.

I like Insomnia more than what we have now, but I wanted to let you know that was the pain point that lost you some customers so you can hopefully address that to avoid losing future customers. :-/

I think something like a "locking" feature or the ability to prevent certain users from modifying certain shared environments would have helped.