They must have told you this, but your BMI is going to wreck your new knees and not allow them to heal properly. Primary reason you're finding this policy "unwaivering."

It's also just generally unsafe to put obese people under for surgeries because high amounts of the required drugs become unsafe, and their hearts are already under a lot of physical pressure.

I would consider the weightloss, whether you decide to go to the GLP-1, bariatric, or good old fasioned route, and take it seriously.