Add more complex handball and offside laws and referees and VAR interpretation of them from week to week and you have a 'dogs breakfast'.
Handball being deliberate hand/arm to ball and in particular offside to be a clear gap between the body and the last defender would make things much less complicated.
As soon as I hear the "clear daylight" argument I cringe because that person hasn't given it much thought and has parroted an idea to stick with. Clear daylight is the most STUPID "answer" to the view that VAR is broken.
Here are some issues for you to ignore.
1. It only moves the line to a new place. There is no change to who decides if it's offside or not, simply that the ref decides using different body points. Except you need an absolute perpendicular line to see if there's daylight or not. So it doesn't solve any of the contraversy in the offside call.
2. What does it even mean? If two players run then their legs will constantly cross each other, flashing glimpses of "clear daylight" on and off between them at pace. If one player leans and there's a bit of clear daylight at his head but the rest of his body is onside? What if he's on the right wing and the other player is on the left wing? What if he's having his shirt tugged and there's no clear daylight anymore? What if his shirt is very loose and flagging behind him? Is he onside then? You would begin to see weird body postures just like the finishing line in athletics.
3. What will happen if you are allowing the attacker to be nearer the opposition goal than the defender as long as there is no gap? If I were a striker I would always try to be very close to the defender but ahead of him. As a defender I would be trying to stay goalside. The outcome of that would just be goalhanging as both players move towards the goal. It was this reason why offside was introduced in the first place, you may as well just not have offside at all.
4. Playing offside traps would be more dangerous than it already is and you'd see more of #3.
You already have a working law and a computer to decide, which is completely impartial. The problem is resolved.
Hopefully in a few years as can get rid of refs and use AI for most of it, although AI does 'learn' so it'll probably have feelings and get hurt about media comments when Liverpool don't get their way then start giving them ridiculous calls.