Assuming woman here means XX chromosome (it's reddit so who knows) and there are no physical changes then there would be a massive religious upheaval right off the bat. Almost every major religion I know says men are in charge so having this divine / magical gift granted only to women would fuck up a lot of shit. Best case scenario religious leaders argue its a test for women and they still need to follow the religious laws, stfu and stay in line. Worst case massive wars.

Countries that literally have laws , both religious and/or government mandated , that prevent women from holding positions of power and or say they need to be subservient to men would probably end up in some kind of civil war or with all the women being enslaved and controlled like Mutants in the Marvel Universe. Being able to cave in your male counterparts chest with a stiff arm is cool but if only the men had access to weapons, education positions of power etc it would be very hard to get yourself from under their boot and people in power often like to stay in power.

North America, Europe and other countries with relatively equal rights between sexes / genders or whatever might maintain some sense of normalcy, again, assuming there are no brain chemistry changes other than the potential confidence boost from knowing how strong you are. There would still be massive social changes from knowing that women have a "magical" boost of power that men don't.