Men biologically unfaithful?

Hi girls/ guys sorry to disappoint from the title but this is not a story of how my boyfriend has been unfaithful etc, he’s a good lad, however I have been researching how the different sexes are in relationships, for example women fall in love faster etc and I stumbled across some research that said men biologically are not suited to having just one partner, now obviously there will be women out there who are married or with their male partner that were childhood sweethearts etc and have never been with anybody else, however that is becoming a rarity these days especially when social media can play such a big part in people’s day to day lives these days as temptation is literally being thrown at you with promises of a better partner etc, I was just wondering how many of you ladies agree with this research or how many disagree entirely, this is not my personal opinions or anything so no personal comments please. As I hypothesise that men have been socialised these days differently in comparison to way back when, when perhaps biology and primal instincts were the base of how humans acted instead of these days were more bound by social norms and morals, just looking for opinions on this :)