Hi Braden,
Not across this historically but it looks like it is working as expected. If we click 'learn more about this option' the URL matches the expected composition.
Having 'arcgis-survey123://' instead of https:// will prompt the Survey123 field application to launch, instead of the browser. Perhaps a change was made so that the shortened URL didn't launch a browser page/tab, then open the app once the URL was redirected to the one beginning with arcgis-survey123://. Can't see anything to indicate this in the recent changelogs.
Are you experiencing any issues with the revised URL?
Cheers,
Chris