Here's a video.
I did realize this is proably a dupe of https://orionfeedback.org/d/7062-does-not-open-a-desired-webpage-when-orion-app-was-not-open-before.
I'm also experiencing this, iOS 17, Orion 1.3.7 (15).
Selecting a link from another app (e.g., Mail.app) when Orion on iOS is closed results in Orion launching and reloading the last-used tab rather than loading the external link.
The desired functionality is to open Orion with a new tab and open the external link. If Orion was previously running when selecting the external link, it does open the link in a new tab, as expected.
1.3.7 (15)
17