Pre-Op at 488 lbs: Looking for "High BMI" Recovery & Mobility Hacks"

"Hi everyone, I haven't had my surgery yet, but I'm currently 488 lbs and preparing for the Duodenal Switch. My goal is 190 lbs.

I'm an athlete at heart and I'm ready to hit the ground running, but I'm nervous about those first few weeks post-op. For those of you who started at a higher BMI (450+), I'd love your real-world advice.