Specifically, Mosseri said Instagram has plans to show users full-screen videos in their feeds. This includes videos it recommends to users, including those from accounts they do not already follow. Users will start to see Instagram’s experiments with these changes over the coming months, he said.
“We’re no longer a photo-sharing app or a square photo-sharing app,” Mosseri said.
This probably creates room for a place to do photo sharing only. If Instagram doubles down on the format, then the photography experience will be affected. Adobe perhaps. The Lightroom Mobile app added a “Discover” tab not too long back.