There’s lots you can do with this information. It can inform product development, it can change the way you market the product, it can influence the language you use to describe your product to your customers, it can change where you advertise, how you sell, etc.
Between drafts: "How long you let your book rest— sort of like bread dough between kneadings— is entirely up to you, but I think it should be a minimum of six weeks. During this time your manuscript will be safely shut away in a desk drawer, aging and (one hopes) mellowing."
As with other social networks that grow, Instagram broadened its formats early on to head off several format-based asymptotes. Non-square photos and videos with gradually lengthening time limits have broadened the use cases and, more importantly, removed some level of production friction.