I think Baldwin can be a franchise PG. He has the size, length, athleticism, and shooting. He'll need to improve on his ball handling and facilitating, but he already has the great foundation you're looking for. It's really all there for him. I do remember Baldwin getting cursed out by his coach after clapping sarcastically towards the opponents after the game. Don't remember a lot of red flags about him. I do remember some about Luwawu and his attitude though.
Baldwin has some attitude to him, sometimes looking like arrogance. But I don't think he'll ever be a behavior issue.
I don't want to sound negative on Baldwin because he was a guy I really liked as a prospect but he's a guy that has a lot of tools on paper but when you watch him it just doesn't come together. Good shooter, good defender when locked in, solid rebounder and an improving passer/playmaker who usually makes good decisions.
But for all his tools, he struggles to get to the basket (some of that is his high dribble and lack of advanced ballhandling) but he also just doesn't have a lot of burst or wiggle to him. And while athletic, he's a poor finisher.
But the biggest thing for me was that in watching him he would too often disappear for long stretches on both ends. Looking passive on offense and losing concentration on defense. When I watched Kris Dunn there were a lot of times that he didn't look good. Out of control, trying passes that had no chance, getting tunnel vision etc, but I always knew he was on the floor. I didn't feel that with Baldwin. Sometimes I'd be trying to focus on him specifically during games and I'd still lose track of him at times because he just isn't always there.
I like Baldwin and I think he's got great tools and can play an important role but I don't see stardom with him at all. I've been wrong plenty in the past so we'll see, but I'll be surprised if he ends up being a high level player.