I've never used plain ground pork in stuffing, but I've used a boatload of sausage.
Don't see plain ground pork adding any flavor, unless of course it were seasoned and cured.
sse, I don't make my own, so I hit the best Italian Market I have available in my area, Doris' Market. Family owned, family run since 1947.
https://dorismarket.com/market-item/market-home-page/I use their Italian sausage in most recipes calling for "sausage". They have several different varieties, but I usually stick with Sweet Italian.
Have never used Jimmy Dean for stuffing, but I do like it for breakfast when I'm going that direction.