Hi, allowing construct 3 apps to receive share data from other apps will be extremely useful, as most apps support this now e.g you can share URLs from chrome, etc and having this functionality in a construct 3 app would be AWESOME! For example, you could let the user share a URL from chrome to the app and then have the app save it so the user can go back to that URL, etc. Also you could have your other c3 apps send data to your other app etc.
Receiving share data is more appropriate for social media applications, and possibly productivity tools like image editors. It's not clear that this is an appropriate feature for a game. For example one of the cited uses was to set a profile picture, but this is does not seem to be an appropriate use of receiving share data - it would be better to have an option to pick the profile picture in the game, instead of using the share mechanism.