Main? No.
But I play with it on an iPhone 13. It's fine? Seems to work as advertised. I'm content with it?
I know, this isn't a ringing endorsement, but it works. Doesn't block ads or whatever as well as desktop browsers, and I only have uBlock as an extension. Sometimes video autoplays but always muted. If it were the only browser I had, I'd be OK with that. The UI is clean, and unobtrusive. It works. I haven't tried banking or anything with very complex rendering, and a person smarter than me might have decided to switch to their phone and try typing this in Orion instead of their Windows work laptop, but it's fine. It's displayed every site I've tried without problems. What more do I want?