View attachment 13161
This is my plot on G25, and i'm from the Gargano, a plot closer to Tuscany than to Apulia and closer to Umbria than Lazio, in my opinion, central Italy proper (excluding Abruzzo and Molise which are central-southern) is quite homogeneous
Very unlikely. From what you posted your closest population is the Greeks from the Peloponnese.
Dodecad K12b results make much more sense in your case, as mentioned by Palermo Trapani.