I've had a Whipple and 2 colon cancer colonectomies; so very little of digestive system left ( small portions middle and lower small intestine. ) I saw dietitian who was not very helpful. She really had no clue what was going to be helpful for my situation
I now eat anything I want in small portions, well chewed
Cooked or raw , no matter.

Obviously it's taken time to figure out what doesn't digest well or at all, what is going to cause liquid stool and what is going to cause bloating and gas. It's a process. I started taking Creon to aid the pancreas after almost 20 years post Whipple. Part of pancreas was removed too.
I certainly have eaten the wrong thing or too much of something but 24 hours later I am OK
What works for me may not work for you ; but without experimenting with your personal diet you will not learn what your new diet will be.