Cooking with Fats, Butter, Oil, Coconut Oil… clarification needed (pun intended)

Enjoyed the BTS video on food prep, thank you! You mentioned that you saute various meats in butter which I found interesting as I cook mostly with olive oil (my own, from my own trees I pick myself here in Croatia), but is there a health reason you prefer butter? or just a taste thing? and, how do you feel about sunflower oil for salad? and regardless of fat choice, does cooking with it count in the total fat allotted per meal? Currently, my protocol includes 2 tbs per meal, 1 for cooking, 1 for my salad. Thanks much! Sorry to miss the bonus call on weight, I was snoozing, but loved your rapid-fire answers!