Squatting at school once I talked to a fellow doing squats. His form wasn’t horrible but he was wearing running shoes. Lead to rocking forward which is bad on the knees, if you have ever pushed up from an angle and had your knee slip or pop out you know what I’m talking about. Told him to try squatting barefoot or with flat shoes. He gave me the strangest look, right then I realized not to advise people unless they ask because everyone is into their own training and thinks they know more than you. I’m sure he could have liked the way he squatted in running shoes.
Other people have come up to me and asked about form or how to do a movement, I watched a pretty good trainer openly assist a guy squatting with horrendous form and the squatter actually thanked him. It could go either way. I would focus on your shit ,mental toughness is really what separates the people at the top from the average folks at any endeavor.