Yeah, but by that point he's already been depicted or built up to be a different person and character than Tony. I'm not even sure the Armor Wars will make him as obsessed as they did Tony in the comics.
It's not like in What If where it was basically the same stories and lines with Steve, except with Peggy.
Well at least an actual series would behoove the need for giving her more than just Steve's best hits, even if they'll probably lean into her being as effective a Captain (more or less).
(Well, her use in Ta-Nehisi Coates' Cap run felt like a bit much to me...)