“How can I master the squat? Or the bench? Listen, all I want to do is put more weight on the bar and get stronger in the process.”
I hear you, and there are plenty of ways we can do the above – it just depends on each person’s biomechanics, training level, and previous injury level if any. We could row and shrug to get a bigger upper back (wouldn’t hurt for any of the above), do pause reps when we can, and do some speed reps, among a host of other ways of adding numbers to the bar.