Instagram's shifting to rectangles, messing up your perfect, square grid. ... And square photos are sort of the heritage of Instagram," Instagram chief Adam Mosseri said in an Instagram story.

The rectangle grid is already for the reels". "Instagram has officially made my accounts layout rectangles instead of squares.. u will never be TikTok," a third person posted.

Instagram now supports photos with a 3:4 aspect ratio, meaning photos from your phone will show up on the feed as you shot them. ... Instagram isn’t just for square photos anymore.