Chronic pain and exercise

I initially posted this under the fitness and exercise forum, but many of the comments came from people who had gastric bypass, but I however am going to having the sleeve done. Not sure if weight loss is the same for those who had a bypass compared to those who were sleeved. To those of you had the sleeve and commented on my original post I thank you again. Below is my original post...

”Hello everyone, I’m in need of some guidance and support. I’m looking to be sleeved in September. My surgeon has told me that unless I can do cardio 40 minutes 6 times a week within the first 3 months, my surgery may not be worth it. I have chronic foot pain and chronic plantar fasciitis, and even the recumbent bike flairs it up. I don’t know how to swim. I’m going to have to rely on chair exercises for a while. I’m hoping that the weight loss with help resolve my chronic foot pain, and that eventually I’ll be able to up my cardio. At any rate, I just wanted to know if any of you were able to lose weight without the regimen of 40 minutes of cardio my surgeon has prescribed. I’m worried that I won’t lose weight if I can’t exercise the way my surgeon wants me to.”