I suspect this is one of the reasons many doctors (like mine), recommend a lower carb diet, at least initially after WLS.
I personally have a love/hate relationship with low carb dieting. I lost a great deal of weight doing low carb ~20 years ago, but ended up gaining it all back and then some, because I found it unsustainable long-term. As a result, I'm intending to take more of a "smart-carb" approach this time.
The reality is, not all carbs are the same. My plan is to limit my intake of simple carbs, especially processed foods as much as possible, while adding in complex carbs via whole foods as tolerated.