Good point.
I have had Labs for decades, and their bark is fierce but they soon go into the tail wag when they feel embarressed (being sarc) about barking at a known visitor.
I have had only 1 killer lab and he had proggressive lupus of the brain.
Had to put him down due to his becoming scary aggressive/violent.
I always thought our Labs were smart dogs untill downsized and added a Dachshund to the mix.
Labs are not “that” bright is my opinion now and very docile when the Preacher Dachshund gets busy.
I had a Dachshund as a child. They are ferociously protective of their family.