How to hide your Instagram activity or online status, and check if someone is active

Instagram offers a number of similarities to other social media and chat platforms, including Facebook Messenger and WhatsApp. Features are constantly added, including options like "Show Activity Status". If you use Facebook Messenger and WhatsApp - both of which are owned by Meta, like Instagram - you'll know that they show when you're online and last active, or last seen in WhatsApp's case. Instagram does the same.

Source : https://www.pocket-lint.com/how-to-hide-your-instagram-online-status/