Something along the lines of 4x4 that expand or contract based on how you resize the app. It ought to have a multi-tiled interface that lets you see multiple photos in a tiled format as PC monitors are wider than they are tall. The developers who ported the mobile app to the desktop version also seemed to not add a single feature just subtract. You’ll need a touchscreen system to post photos. First, you can’t post photos to your Instagram account if you’re using a standard PC with a mouse and keyboard. Or rather, it’s lack of creativity for the port.
Drawbacks to Instagram for Windows have to do with its optimization.