Orion is not a paid browser. Kagi, however, is a paid search engine, and Orion was made by the Kagi team. The browser is completely free and is in all Apple OSs (coming to Linux soon) and gathers absolutely no data. And the browser comes with no search engine chosen by default so it isn’t really an ad for Kagi.

I personally think it’s amazing especially how you can have both Firefox and Chrome extensions on it. Its only issue is it being proprietary.