Escaping the in-app browser in iOS apps

Most iOS apps that open web pages open them in in-app browsers. These are somewhat restrictive, in that they don’t support bookmarks (and hence bookmarklets) or Handoff (although they do support AirDrop). Is there a quick way to open them in the full Safari iOS app?

The Share Sheet doesn’t seem to have one built in. You can copy and paste the URL, but that’s quite a bit of precise tapping.

This seems like functionality a third-party extension could add pretty easily. Not interested in jailbreaking though.