I doubt this is the case. They were working on a prototype back in October 2023 [1], but then the contractor bailed out [2], but now they got (probably different) people working on it now
I think this is correct. I refuse to touch Chromium with a ten-foot pole, but there aren't really any other options on Linux. (Yes, there is LibreWolf and other forks, but I doubt any have the resources to "go it alone" should Mozilla fold or go completely turncoat.)
The closest extant option is something like GNOME Web (also based on WebKit like Orion) but the lack of extension support and poor performance makes it a non-starter.
As someone who already pays for Kagi search, Orion will definitely be on my radar. I'll gladly volunteer $5/mo if I can just copy-paste my extensions unchanged and keep browsing.
WebKitGTk performance has improved a ton in the past few releases. Orion will ofc match that. Also working on WebExtensions in upstream hopefully by end of year.