It's not just a browser feature, now is it, it's an interoperability feature since you're supposed to share links (it's in the title). This means that the near-

It's not just a browser feature, now is it, it's an interoperability feature since you're supposed to share links (it's in the title). This means that the near-monopoly is going to drive people who receive the shared link to consider using the browser that supports this. That puts other browsers quite on the defense, does it not?