Meh, I’m usually pretty aggro with jacks preflop. That depends on the situation, of course.
If overcards flop, I size up and C bet. Yeah, I will often fold if I get played back at, but aces, kings, and queens hit my open range harder than they hit someone’s limp/call range. (or call range if they are after me)
It’s hard for QQ or KK to call a stiff bet on an Axx board, and weak aces fold a lot too. On a Kxx board, it’s hard for Ax to continue, as it is with a Qxx board. Basically, play them like aces and see what happens.
Of course, this is all situational. It depends on who is in the hand, position, relative stacks, blah blah blah, as always.