
Just focus on going up in weight on legs and doing progressive overload with them. With chest and back just keep doing the same weight you’re doing rn so you keep your muscle. Give your legs time to catch up to your upper body. Once you can probably squat your body weight then I would say it’s evened out
I wouldn’t worry about it too much, your legs are (generally speaking) more prone to muscle development and the progress you’ll make as a beginner will last longer than for your upper body. I know it seems odd, but it’s not unusual for a beginner to struggle more with squats than anything upper body. It’s got less to do with your physical strength, it’s more so about form. Without proper form your body won’t let you lift as much as you can because it knows you’re going to hurt yourself
I would disagree with 1 and 2 in that you shouldn’t slow down your upper body training though. You’ve only been working out for a month, before you start worrying about the perfect workouts for muscle development and getting the perfect balance of strength, focus on your form and your recovery, and continue to push yourself every time you go