I tried Hurl after Insomnia went the way of Postman. The highlights you list were the strong drivers for testing it out. Where Hurl fell short was composing requests. Example: X.hurl response has authToken. Y.hurl uses authToken. Z.hurl uses authToken. There's no import ability[1], so you've got to use other tooling to copy X.hurl into Y.hurl and Z.hurl.
Ultimately settled on Bruno. It's backed by readable text files[2] as well. The CLI works for scripting. And the GUI is familiar enough that I've managed to convert Postman holdouts at my dayjob.