Yeah, I'd argue better than postman because of the feature set and interface. It's very pleasant to use for both REST APIs and GraphQL, highly recommend it if you don't mind the electron tax.
More features than postman or better features? Postman has a ton of features, so just trying to figure what you meant by calling Insomnia better because of its feature set.
Insomnia the REST client is great -- I love having a native Mac alternative to Postman. Team syncing works really well, you don't even have to think about it.
Sorry, the only Insomnia I know is an app that never let your Mac sleep... although I’m not sure if that’s still around.