Wondering if anyone has experience with getting (or trying to get) a book traditionally published after self-publishing it on Amazon and other services.

I put a book up on Amazon last year and it received positive feedback. I have other work traditionally published now, and I'm considering trying to take the existing book and pitch it. Does anyone know if there are any gotchas or issues with this? It's currently enrolled in KDP so I imagine I'd have to pull it from that program. I'm mostly curious on whether it should remain on Amazon at all, for agents/publishers to see the positive reviews, or if common wisdom is to remove it from Amazon before trying to submit it around? I have read about the "self-pub stigma" in multiple places, where apparently publishers and agents won't touch work that has already been self-published. However, I don't know how true that is.

Any thoughts or insights would be appreciated.