I'm a lesbian, and I've never once looked at a woman and thought 'wow great rack' or those kinds of locker room talk thoughts. I've also never thought 'yeah I'd shag her' or whatever, which is how you hear men talk.
Generally when I see other women I'm thinking things like 'wow her nails look cute', 'her hair is lovely', 'I wonder where she got that dress etc'. If it's a woman I fancy, it's still more of a 'she has a beautiful smile, she has a lovely face shape, I'd love to take her on a date' and that kind of thing. If it's someone I fancy, it's all about having a kind/nice face for me, and a good personality/similar morals etc.
I remember speaking to a close male friend, and he talked about the fact that when they're booking a hotel room, the first thing on his mind is sex. Blows my mind as it never once crosses my mind. I'm thinking about the view and the price 🤣 He also said when they go to the beach, he's just thinking about the bikini and sex 🤷 When I see girls in a bikini I'm wondering where they got it from and thinking the colours are cute.
It's not true for everyone, but I think men look at women in a more sexual way than we look at men (or women if you're gay). I think there is a biological component to this. Men have more testosterone and are typically more sexually driven, and in terms of the survival of the species, men will unconsciously be looking for attractive mates to spread their genes with. Women unconsciously in terms of biology will more be on the lookout for a kind, good man, thus ensuring survival of her offspring. I think we like to think we're better than that, but it's hard to fight millions of years or evolution whether we realise it or not.
However, I do think there's a huge societal component. It's normalised for men to objectify and sexualised women. Under patriarchy, the most important thing about a woman is how attractive and fuckable she is.
On a flip note, I've heard my friends privately talking how how hot men are, muscles etc, many times. I think the difference is women don't typically cat call and ogle in an obviously creepy way. I think maybe women are more aware of not doing it, because they themselves experience it regularly and it can obviously be uncomfortable! (To be clear, I'm not talking about a quick up and down glance if you see someone hot, I think that's fine!)