Thanks for putting this article together. It was exactly what I was needing to decide on which HTTP client to pick.
Btw, you could think of adding a way to let your users interact with your blog. I tried search for a comment box or upvote/thumbs-up so I could send my thanks for your efforts on writing it, but could not find it, so I resorted to HN comments.
I've been meaning to put some comparisons together!
Bruno is also a good local-first client but leans more toward Postman's market.
The main advantage Bruno has is the ability to run tests, and a CLI to do so.
Yaak supports more protocols (eg. gRPC and WebSocket), has plugins, and more powerful templating for doing things like generating UUIDs (also extendable via plugins).
It's definitely under consideration. Yaak has Request Chaining [1] to solve some of the use-cases that scripting is typically for, though, so there isn't a ton of demand for it.
[1]: https://royathan.com/blog/the-api-client-hunt/