Badminton vs Gym

You should start by just walking. Don’t push too much too early.

Fasting.

Badminton. Less opinion givers there, both online and offline. Also less mirrors/instagramming culture there too. Plus you can actually have fun too!

Pick what you can do for years. If you’re into badminton do that, just make sure people you play with are reliable. With gym or any classes like Yoga, the benefit over badminton is you do not need to rely on other people. It’s a solo activity and hence more sustainable for me. Do what is sustainable for you and you’ll be fine!

Swimming or basic inclined walking Don't put too much pressure on joints, your weight goes against that.

Start with better diet first. Consult with a dietitian to get a meal plan, then join a gym for weight training and cardio. Both will help you to reduce weight. Badminton only caters to cardio which might not be the right solution for now.
Good luck on your weight loss journey

Strength training + Some cardio(Low Intensity Steady State(inclined walking)) + hitting a step goal + Proper Diet + Proper Sleep I lost 24Kg from 122 to 98 in 14 months and I used to go to office 5 days a week.

Skipping is the best one for weight loss bro....U can refer once SkipperSurya (youtube, insta)

Diet comes first. You can’t lose weight if your diet isn’t balanced and in a calorie deficit no matter how much you exercise

Bhai idk if you are the same person who asked for weight loss advice few weeks back also, if you are the same person, then instead of asking people asses your situation, and get your hands dirty, you like weight training go for gym, you love playing sports, go with badminton. Doing either of these without any specific goal or intent will lead to nothing. Make your own choice.