Harley is neutral to strangers outside except for one old(er) lady who I meet walking many mornings. She's my non-dog-owning inspiration as she hasn't missed her daily walk (45 minutes?) in decades, even after recently losing her long time walking partner. I always have time for her and Harley does too.
Rogan is neutral to strangers but alerts to dogs. He will actively avoid being pet by people he doesn't know and I'm great with that.
Both were fine at the vet (total stranger) last week.
I kinda cringe when I see so many people blaming dog issues on COVID and the inability to "socialize" them though. Rogan is pretty much the least socialized dog I know. I have no idea where he lands on the hardness scale but he's a very serious dog until he accepts you. He has met a ton of contractors as we do a major renovation/addition, scares the crap out of them in the driveway but fine when they're accepted inside. Definition of aloof then.