Using the remote on apple IOS 15.3.1 there does not seem to be an option to keep the screen awake ( Or am I missing something? ), also to compound this issue there is no way to control playback on the Lock Screen!. I would have thought it would be easy for the developers to rectify this.
You can keep the screen of MacOS awake but not on iOS, it relies on your iOS setting to save battery life. You have an issue when you go back to the Remote after your device goes to sleep?
It’s not easy as it seems. This screen is by default used when you are playing local content from your iOS device. We had other users suggesting adding this but we have not found how to do it for the moment.