I don't have enough data about behaviors in different cultures, but I suspect they are rather different. (I wish I had better data, such as a big table with cultures in columns, behaviors in rows, and specific norms in the cells.)

Of course it depends on how many details do we specify about the behavior. The more generally we speak, the more similar results will we get. For example if I ask "is it OK to have sex with anyone anytime, or is it regulated by some rules?", then yes, probably everywhere it is regulated. The more specific questions will show more disagreement, such as "is it OK for a woman to marry a man from a lower social class?" or "is it OK if a king marries his own sister?" or "if someone is dissatisfied with their sexual partner, is it OK to find another one?" (this question may have different answers for men and women).

Also it will depend on the behavior; some behaviors would have obvious disadvantages, such as anyone randomly attacking anyone... though it may be considered OK if a person from a higher class randomly attacks a person from a lower class, or if the attacked person is a member of a different tribe.

I guess there is a lot of mindkilling and disinformation involved in this topic, because if someone is a proponent of a given social norm, it benefits them to claim (truly or falsely) that all societies have the same norm; and if someone is an opponent, it benefits them to claim (truly or falsely) that some other societies have it differently. Even this strategy may be different in different cultures: some cultures may prefer to signal that they have universal values, other cultures may prefer to signal that they are different (read: better) than their neighbors.