You put more weight on one side as you settle into your squat, so your body looks a bit off-balance.
You’ve probs suffered some type of aggravation or injury on the side you lean away from, whether recently (in this case, you’ll feel discomfort) or in the past (which means you’ve likely developed a muscular imbalance, where your healthier side became stronger than the other to pick up the slack). Pain or not, you’ll want to fix imbalances – your better side will only continue to get stronger until it can no longer overcompensate, which could result in injury.
See a physio to figure out what’s causing you to favour one side. After diagnosis, your physio can help you treat it.