You can check what page is used where from the app with the help buttons.
Settings - Interface - Now playing screens is called from the root now playing screen and for the compact button page.
So should have the full settings for both + for the expanded pages a link to the actual one Settings - Now playing - Expanded player
Most things should be described with all parameters and the data that is outdated should be removed.
This Where to find these settings: Settings → Interface → Now Playing Screens should not be necessary as it’s contained in the title of the page.
So that page should have the title updated as I moved the options (I’ll do it)