If we're on the subject of the A321, there does seem to be a need for a freeware GlobalX edition for FSX/P3D.
N570TA appears to be a starting point for a pax model, but I can't seem to get a shot of the left side of her to confirm if there is a G on the tail or an X. The right side sports the G, but the only extant photos I can find of the left side have the X. Cargo models all have the X on both sides. I'd paint this one myself, if I had the definitive answer.
N277GX has confirmed bilateral symmetry, with a livery that compliments the solid color A320s in FSX/P3D.

With the A321 coming with MSFS24, and the A320 also coming (and paints existing for both), a GlobalX VA would seem like a natural thing to do...so I launched one on
FS Hub, converting what had become a structure-less Comlux Malta VA into something a bit more definite and closer to home.
Thanks as always. This site and its' contributors are doing wonders for keeping the older platforms going.