I just want to be able to share a URL with a QRcode from the Share Sheet (for Android users of whom cannot recieve AirDrops) and expect then that I would have to make an app just to make the extension option available ?

There doesn't seem to be a store just for Share Extensions ?

Check out Stewart Lynch video ShareLink and ShareSheet in iOS 16

Thank you for the link, but it is for sharing within one's own app and not Safari for example.

I wanted to create a QRcode extension so that it can be enabled within the Share Sheet in Safari on iOS.