I Don't think it has too much to do with appearance, if I take top stars like Kelli, Ama rio, Sasha Foxx, Leya or Ginary, they don't seem like they did something to their face (well kelli did but it was after an accident).
It 's more about branding and what they are willing to do, if they have their own twitter and talking dirty 24/7, they get a following. Simping is very strong
A Girl next door is typically someone that does not want to make a fetish career and does not want to interact with the public. They are here for a quick buck and some fun.
Then of course you have a lot of OF girls that fake to be into it and agencies manage their accounts, which I find very sad
And to be fair I have to mention that there are also some producers that are outsourcing their videos and I find it equally sad.
I value the passion, the risks, and the effort.