I found the move to release Orion on Linux and windows weird.

If you were Google and you wanted to spread your search engine to the world, it would be fine but such a small company. And the market share would still have been abysmal on the platforms.

Great thing that they release it before abandoning it, truely a great move !

And hopefully they keep making it better on macOS and iOS.

Sad that the other two platforms won't have the same stewardship as Orion on macOS. Especially since we're likely to see drift from the core WebKit implementation between them now.