Worried that people don't spend enough time thereInstagram previously asked users to choose a limit on how much time they can spend on the app. You could set a limit of up to 5 minutes. Now the minimum value is 30 minutes.Discuss
Instagram users saw a notification from the app that their old limits are no longer supported. The options currently available are 30 minutes, 45 minutes, one hour, two hours, and three hours.
Instagram introduced the screen time limit feature in 2018. This happened after the site was criticized for the harm it causes to the well-being of users. It's possible that the company decided to increase the limits because they are worried that people are spending less time in the app.
Source: The Verge