My labrador would run to the front door in 1.2s, but then roll over and demand to be stroked.
I have a <1 year old male golden retriever and I was surprised to learn that he has a very strong guard instinct and will not STFU with his loud, deep barking any time he hears a strange noise, or some stranger is walking by.
That said, this is a feature, not a bug. "Early warning system" was in the top two features I was looking for in a dog.
Great Danes are famously couch potatoes but mine could not stay still and demanded a ton of exercise - still it was the exception rather than the rule for that breed.
The myth of breed behavior is not good. It's the reason so many pitbulls are put down. They are absolute sweethearts until you abuse them and train them to fight.
For example, you're going to need to train a Belgian Malinois or Pitbull much differently than a Golden Retriever.
And yeah, dogs have their own personalities (so do practically all other animals), and it confuses me that more people aren't aware of this. The world can be much richer once one realizes this.
A Labrador is more likely to have been trained to be a sociable, a Rottweiler to be aggressive. It’s reasonable to assume the breeds will behave in a particular way because they’ve probably been trained that way. Even when we don’t think we’re training them, our expectations cause them to behave in a certain way.
They also have repeatedly cornered plumbers, electricians and HVAC folk. When we're expecting someone, we lock them up in the bedroom.
Maine Coons are cats.