FWIW I have a mostly Azores cattle dog and Pitbull mix, he hunts anything on his own and is good around small kids and infirm older people. Not sure around other dogs or cats, I'd bet he's kind of iffy on that honestly. He can get really excited and will body check grown folks, it's the Pit in him I guess. Mine is super independent like a cattle dog, but obedient to the pack leader and territorial like a GSD, no separation anxiety or heel nipping out of him though. Medium intelligence, between a lab and GSD I'd say. His night vision is insane, but he's goddamn invisible in the dark.
About 85lbs, usually low energy, needs explosive exercise. Tug of war for 30-45 minutes a day and he is all set. Grooming is a breeze, he sheds very little but year round so gotta keep up with sweeping and vacuuming. Not really a hiker just cause he's so muscular but he gets along just fine. He loves swimming but he's not too quick at it. He's gotten deer, squirrels, groundhogs, turkey, coons, rabbits, you name it and all practically on his own. I don't do bird hunting but safe bet he could pick it up in a day flat for the price of a bag of treats, he retrieves squirrels for me in the spring.