Before you enable Downtime, go to Settings > Screen Time > Limit Usage > Always Allowed. From here, choose essential apps ...
Losing access to your iPhone’s Screen Time passcode can be a significant inconvenience, especially when it limits your ability to manage app usage, content restrictions, or device settings.
Unlock iPhone passcode without PC Effective – 2 alternatives for unlocking iPhone passcode on the device itself or go to the Apple Store. Medium – a little bit cumbersome and complicated operations.