On iOS the app can ask to take over certain https urls. The web site also needs to have a special file to grant this access. Bluesky is choosing to do this to y

On iOS the app can ask to take over certain https urls. The web site also needs to have a special file to grant this access. Bluesky is choosing to do this to you. I used this for a login / reset flow about a decade ago, so it's been around for a while. There also is the ability to register for a URL "scheme" (the bit that replaces "https"), which I believe is what you're thinking of and it does predate the https thing, but both have been around for a while. I'm guessing companies have just gotten more aggressive about using the https one. Edit: and yes it is annoying, I've uninstalled the GitHub app because of this.