I have been doing some research on shallowing

You are creating a lot of lag and making a far more consistent swing doing this - it’s not based on timing but on far fewer checkpoints - hard to get down but once you do a far more consistent swing

OP, I think this might help me too.

I haven’t thought of it that way before and have struggled to figure out what it’s supposed to feel like. Hell, even look like.

Tbh my best golf comes when I focus on making a good backswing and am thought free on the downswing. Back to target as long as possible is a great feel to help maximize driver. Iron feel is more figure out the length of backswing. Dont drop chest or knees in down swing. Don't move your hips and arse towards the ball, if anything work them away from the ball. And just have smooth tempo. You aren't necessarily trying to maximize distance on irons like you are on a driver or 3 wood.

Shallowing is largely overrated. Some of the best players in the world are the opposite of shallow. You need to swing the club how your body naturally wants to swing the club and set up your own checkpoints around your natural swing. Unless you are trying to compete on the tour, you'd be surprised on how much changing feet setup, club setup, ball position can improve your game without ever making wholesale changes to your swing.

I'm no golf coach but that sounds like a shitload of bad advice. Not to mention 10 more swing thoughts that can only make things worse. But what do I know. I have one swing thought with the driver...hit it to right field...and one with irons...compress it.

None of these are actual current swing thoughts for me. They were implemented 1 by 1 and aren't a thought anymore. My only swing thought is finishing the back swing for driver and length of backswing for irons. I was just giving basic advice to a dude asking about shallowing. I was just sharing my standpoint, that you can make simple little changes vs hopping on a tired trend and overly changing swing/club path.