Easiest way to ‘BBQ’ ribs, or wings, or anything like that (if you don’t have like a smoker or a Traegger) is super low & slow in the oven - or cook them fully first in the Instantpot. Then you just sauce them & ‘finish’ them on the grill fire for the char marks.
Yeah, it’s ‘cheating’, so what. At least you avoid your kid asking for a PB&J…..