Occasionally, an OS update will hide certain apps to comply with local app store policies.
Ensure your primary launcher is updated, as it acts as the "bridge" for hidden content. To help you get the most out of your setup, let me know:
An ad-free alternative to the standard YouTube app that supports 4K playback on the 5p hardware.
Did your apps , or are you setting it up for the first time ? Which country are you currently using the device in?
If the 6868 code doesn't work due to a firmware update, the built-in browser is your second-best tool for finding hidden files.