sex favorable asexual vs demisexual

Hey, I'm a heterosexual male, and my girlfriend and I are trying to understand her sexuality better and how to explain it to people. We thought she was demisexual, but then I found a tik tok a while ago where someone was describing what it means to be sex favorable asexual, and that sounded like the same thing. Is there a difference? And if so, what is it? I want to have a better understanding of my girlfriend and neither of us know much about this so I'm hoping that having proper language to describe it might help