Like if someone is a 6 foot 10 body builder, they know their needs.
Also the suggested range of g/kg ranges from .8g/kg to 1.2g/kg, which is also a huge range, but that is primarily for building strength, not maintaining.
Given the goals here are "rough guidelines on eating healthy", I'm fine saying most men should aim for 60-90g of lean protein a day. That isn't exactly a hot take.