I’ve said this before but I have no problem with VAR drawing lines but it hasn’t got the sophistication to pretend that it can be accurately done to determine offsides on such a minute basis (toes, armpits, when was the precise moment the pass was made, have you picked the right moment to freeze the image? etc). By all means attempt to put the lines in those places but make the lines thicker (say each being 3 inches wide). If they cross over each other it’s too close to call and the players are deemed level (therefore onside).
As the technology improves so the thickness of the lines can be reduced.
That to me would be a sensible solution that acknowledges margins of error and gives the benefit of any doubt the right way (attacking side) imo.
The alternative is to pick a more sensible part of the body to determine offsides from such as the players boots (as Souness has suggested).