Apple launched a Downtime feature with iOS 12 last year, which lets users impose limits on app use. It allows you to turn off apps after a certain time of day or after a certain amount of time. Now, it looks like you will be able to customize Downtime to account for days of the week.
A Twitter user spotted the change recently while poking around the iOS 12.2 beta. It lets you set different limits during the weekdays and weekends, depending on when you need to be on your phone more.