400 NL : QQ overpair vs overbet shove on flop

[Yentz]

I dont really mind sometimes just calling the 4bet in position, especially if he might bluff with A high when AK, AQ and the odd light 4bet misses the flop.

I dont do so to fold to a push when no overs flop though, so I call here as played.

I think the flop overbet line is hard to interpret readless, at least I cant figure it out :-)
I see some people overbet push AA/KK to make it look bluffier and some push as a bluff with AK.