This is kind of my spin on what “swinging left” (right for a left handed golfer).
It’s the anti-inside/out and what I am working on indirectly right now. If you are stuck and/or swinging too far inside/out, this video will be very helpful.
It will also help if your shoulders turn too vertically through impact and/or your lower body doesn’t turn very well.
Basically, all of the problems I have…LOL.