Me again. When opening a shared link in a mobile browser, depending on the browsers configuration this redirects to and launches the app. Unfortunately, this then results in a 404.
I kinda get it, a shared page is different from something one would view within the app. On the other hand, the current behaviour is pretty inconvenient.
The way I see it one would either need to create a view fir shared paged in the app, or, probably more conveniently, prevent the redirection to the app for shared links (maybe by my.supernotes.app/shared → shared.supernotes.app?)
If you think this is a bug, please move this post.