Vlad I have video of this, but first I should say I think this happens because (and when) links are set to open with new tab and new tab as a specific page then it is going to that set link instead of the link set from the app, so in some way I imagine this is fixed by putting app links in priority over new tab homepage link. Description of video and video:
An email with a link to Wikipedia in it. The link is held to get a preview then opened into the default browser (Orion). Orion instead opens to Kagi (the homepage for the browser). Go to Google Maps. Open a link from the Google directory, it opens in the Google Maps' in-app browser, but when clicked to bring to default browser (Orion), Orion opens another new homepage, Kagi.