A professional yoga studio is better, because the members who practice yoga in the fitness center are more mobile, and teachers can't teach in a targeted way. In the yoga studio, you can organize teaching plans in a planned and step-by-step manner, and you can also better follow up the progress of members' practice. And as far as some fitness centers I have been to are concerned, those yoga only exists in the body language, ignoring the inherent things of yoga, which is a way of life. Yoga achieves a harmonious and unified state of brain activity and body function through practice. Yoga also represents the combination of the body and something above everything else. It is a system that helps people to exert their greatest potential and reach the highest spiritual realm.
So it's best to do it under the guidance of the master.