I am 80% sure you are mistaking the low res for filter. Unless you are some kind of photography savant who factored in the lighting+makeup+low resolution before saying that.
I am not saying they are untouched, but the level of ignorance when it comes to "filters" is hilarious. Replying "so true" to a guy who thinks low resolution is a filter is so fucking funny. The picture is blurry, you cant see shit in it. Its not a given that these would be touched up either, like what do you think has been touched up here? Its way easier to touch up your face with makeup and way easier to even skin tone with lighting+makeup. She didnt smooth the fat on her stomach so maybe you think she took her waist in? We might be able to tell if the photo was high res.