And regarding android compression issues, although resources are always finite, I imagine in this case the android team is fairly separate, so they may very well be working on that compression issue while iOS is pushing forward into new terrain.
https://www.xda-developers.com/a-look-into-instagrams-compre...
This is likely it, right here. So many people forget that larger companies have different teams working on different things. I bet a lot of their "iOS people" that are working on this project have no clue how the Android app works, and Instagram likely has a separate team working on the compression issues.
Not of instagram user. Not of app users.
I've seen a number of SV companies releasing ugly and buggy android apss then use their lowering android user base as a proof that android users use like their services.
To be honest, things could be worse. You could be a tinder user in win phone...
(Not an android user, I just want to figure out how a company of your size prioritises between bugs and features.)