And it's not "my" standards. It western society's standards.
Actually there is considerable cross-cultural agreement on female face attractiveness, presumably because it has a biological basis. There is a huge body of scientific literature on the topic. That said, computer games do tend to exaggerate sexual-dimorphism in character faces for the same reason that actors tend to be more attractive than the average population. The faces in BG3 are fairly realistic since they created them with 3D scans of real people. Are the jawlines a little boxier than you typically see on female faces in games? Probably in my opinion. I could see that happening inadvertently just by having women or gay men rather than hetero men doing the casting for it. Same way you end up with boyishly skinny sharp-jawed supermodels.