OP if the plants get shade in the morning and sun only in the afternoon, that may count as basically full sun. In GA summers, some plants may burn or suffer in afternoon sun. Morning sun has low intensity. Afternoon sun has high intensity.
So plants for
shade or part shade may do best if they get
morning sun. But if they get afternoon sun, that is the
hot sun and they may burn. I'd consider that a "mostly sunny" location. This may be most true for the south where it is hotter in general.
Having said that, I like some of the suggestions such as clemantis and passiflora. Maypop is one passionflower that is native to GA and reportedly has medicinal properties. It is also the host plant for a very pretty butterfly. Mine died
, but I heard it can be aggressive.
I'd suggest the following vines that are in afternoon sun (S/SW facing) in my yard:
Native Wisteria Frutescens (I just got the WHITE one from woodlanders this year YAY)
Don Juan Climbing Rose (LOVE this rose, but took a year or two to get going)
Major Wheeler native honeysuckle.