The thing about most shelters is they are filled with mutts. Yes, breeds have traits. But with mutts, visual breed identification is notoriously difficult. Best to go to a shelter and meet with a dog to feel it out.
And don’t believe whatever label they slap on it. They are guessing (no fault on them, they gotta write something down). My recent adoption was labeled as a high-energy breed and he’s pretty chill. I almost skipped over him because I was afraid I couldn’t handle the breed that they thought he was/what he looked like.