Please update Android 8 Oreo version in J7 max because in this device the apps hide features is not working in properly and oreo version is apps hiding and undiding features is working directly on home screen.
Thanks for reaching out to the Samsung support communities! Samsung constantly works towards bringing-out the best updates and incorporating the latest technology along with great features. We at Samsung, ensure that Android OS update which is launched, is bug free and is compatible with current running apps in the marketplace before they are available to our end users. The availability of the update would be notified to you via FOTA notification (settings> software update>Enable automatic download updates).
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