https://techcrunch.com/2019/10/16/instagram-will-give-you-more-control-over-your-third-party-apps-in-about-six-months/

Instagram is slowly rolling out a new feature that will help better protect your personal data from being accessed by your long discarded, third-party applications — that is, any app you had once authorized to access your Instagram profile over the years. This may include websites you used for printing your Instagram photos, various dating apps, or Instagram tools for making collages, finding your top photos, and more.

Providing a tool to remove third-party apps’ access to your account is now a fairly commonplace security setting among platform providers. Instagram is late to offer such functionality. Twitter, Facebook, and Google have had similar functionality in place for years.