OK gotcha yeah that's not much weight. The only problem is just doing the squat motion puts a lot of pressure on L4 and L5 in the lumbar and especially the deeper you go. So technically by doing any squatting motions repeatedly you're putting more pressure on the damaged disk. It sucks to because there's no quad builder like an old-school barbell squat.
Give this a try, use one of those weighted dip belts and load it up with a 45 or maybe even less at first and you can stand on 2 platforms with the weight hanging between your legs and between the platforms. The weight is sitting on your legs which doesn't put a lot of pressure on your lower back. This works but it's a pain in the ass to set everything up and keep adjusting the belt as it will pinch the skin around your hips.
This is perfect!!! Yea I've stayed away from squats completely, I've been using the smith machine which doesn't put a ton of weight on my shoulders. I just don't want chicken legs lol. I'm definitely gonna try out what you said with the weight belt today. Thanks so much for the advice.