Are you getting deep enough on your side lunges? Or just bending over turning the lunge into a deadlift?

Here I use a bench to focus on depth and avoid taking too long a stride to compensate for adductor immobility.

To be able to get to the bench sit back into your hips, keep the back straight.

My squat routine will be perfect for you to improve on your adductors and depth of your squat. The key is to sit back to extend the hips as if you're trying to get out of the position. Avoid 'leaning into knees and round the back'.

When you work on the squat mobility with focus on adductors and ankles/calves you'll notice how it'll improve everything lower body wise!