How do I enable game mode on Phone (2a)?

Phone (2a) features a built-in game mode, which allows for management of notification display preferences, touch error prevention, enhanced game graphics colours and a do-not-disturb mode during gaming to improve the gaming experience. Access it via Settings > System > Game mode.

By default, game mode supports games that are directly downloaded and installed from the Play Store. Games downloaded from other sources will not be automatically added to game mode; they must be added manually as follows: Settings > System > Game mode > Apps > Add apps, then add the relevant game apps.