There is no artwork tab. Do you mean the missing possibility to disable the “Album art”?
AFAIK this is the fix for users that disabled this tab in the past and therefore lost access to the settings at all.
In short, I can’t see anything unusual on your settings screen. All options are there.
On the TV you are missing the “Artist photo”. This might be because of the changes regarding artist pictures and Valence. I suggest you make a support request providing needed information about your system. See also: