Dude, did you change the image of the app on mobile, it is literally Mikasa semi naked, could you please make it more discreet?
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You can install a third-party launcher with a feature to hide apps from normal use. You can for example get launchers that will allow you to set a gesture pattern on the home screen which will then reveal your secondary/hidden set of apps. Personally I don't use the feature, but I know Nova Launcher has it. You might need to purchase the Prime version to unlock this feature. I have had it for many years, and don't use the feature as said, so don't know if it is part of the free version or not.