When bulking, should I focus more on protein or calories?

"focus more on"? You need both.
If you're on a caloric surplus but lack protein, you'll gain fat.
If you're getting enough protein but lack calories, you'll probably just lose weight and muscle mass.

>>42613999
Calories. You dont need as much proteins as most fitness "gurus" say, but you need to be at a caloric surplus to gain muscles