I’ll tell you what I wish someone told me when I started lifting. Right now you are doing bench squat and deadlift, that routine is really lacking in pulling movements. The deadlift is good but you need more than that to really stimulate your back muscles. Why is it necessary to build a strong back? If you don’t, your pecs getting stronger will pull your shoulders forward and round them down, which will lead to a pinched rotator cuff tendon. This is called rotator cuff tendinitis or impingement and it’s incredibly common in lifters. It’s like shin splints for running, the most annoying thing ever, and totally avoidable with a simple exercise. Hard to get rid of once you get it, but totally avoidable. As a plus you’ll have really good posture, or more accurately, a normal healthy posture as opposed to what everyone else has. Just add some bent over rows (I like dumbbell, but whatever works) and some pull-ups too, they don’t need to be weighted until you are doing 25+. Since the back muscles are so much bigger, stronger and more numerous than the chest muscles, a general rule of thumb is to do two pulling exercises for every push exercise you do.
The last thing is to get a band and do some rotator cuff prehab exercises, but that is optional (tho still recommended) as long as you are doing a lot of back work.
Seriously don’t neglect the pulling movements, pull-ups are one of the most natural human movements that exist besides running. Our ape shoulders are designed to have really strong back muscles pulling them into place.