Not sure club focused or body focused swings are methods. I think of stack and tilt as a method. Or Leadbetters A swing a method.
Maybe just semantics, but for me to fall in one camp or another it’s what you feel you are doing to swing the club.
I think of no body movement independent of my hands and arms swinging the club. The body just reacts and supports the hands and arms.
And if you concentrate on body movements first and the hands and arms are secondary then that’s a body focused swing.
Now you can have different club focused methods and body focused methods. Just watch YouTube. You’ll see all kinds of methods. Lol
Body focused swings are like 90 percent of what is taught these days.