Instagram created a new feature called Instants. It's another ephemeral feature because
"we also know that a lot of people don’t really share a lot to their profile grids anymore"
I still use the grid because it lets anyone catch up with me whenever they want. No one should feel pressured to open an app every day just to see pictures from friends. If you want to double check something I posted, all you have to do is revisit my profile.
It's still really annoying how algorithm driven the feed is. It doesn't seem like we're ever going back to chronological order on Instagram.