Once your ileocecal valve is removed bacteria from the large intestine can migrate back up into the small intestine and cause gas pains and bloating. Some fibers and carbohydrates feed bacteria to such a high degree that they will cause bloating. Which ones are the culprits is up to you to determine as everyone's gut microbiome is unique to the individual.
From the trauma of surgery you may also develop food sensitivities, especially to carbohydrates/sugars. If this sounds like you a low FODMAP diet may help combined with an elimination diet to determine where your sensitivities lie.
Monash University has a great FODMAP app that helps you determine portion size on foods.
https://www.monashfodmap.com/
You will probably have chronic SIBO if you do not take the time to discover your food sensitivities and determine portion sizes that don't cause digestive issues. Dr. Norm Robillard has developed a low carb diet app called the Fast Trac Diet that helps you determine the fermentation potential of many foods.
Foods that take longer to digest can sometimes allow too many bacteria to populate your intestines which then causes digestive upset or acid reflux. I use the FODMAP and Fast Trac Diet app to help me focus on a safe diet. The great thing about the Fast Track Diet is you can limit your carbs and get rid of SIBO without taking any supplements or antibiotics.
I am going to recommend you look at Dr. Norm Robillard and Dr Allison Siebecker for more information. They are the real deal and out to help people not just make a buck. Good luck and hang in there!
Dr Norm Robillard:
https://www.youtube.com/@DrNormGutHealth
Dr. Allison Siebecker is a great resource for information on treating SIBO.
https://www.siboinfo.com/
Supplements That May Aggravate SIBO (list from Allison Siebecker webpage):
https://www.siboinfo.com/sibo-supplements-to-avoid.html
Supplements to avoid handout link is provided on the webpage referenced but basically is the list provided below.
Individuals vary greatly in their reactions to these items. They may cause no problem or they may cause symptoms. The amount matters. Many find they may tolerate a small amount but not a larger amount. This tolerance threshold varies person to person, item to item and over time in the same person. Experimentation is necessary to find if, and how much, any of these items create symptoms.

Prebiotics
Inulin
FOS (fructoligosachharides)
GOS (galactoligosaccharides)
MOS (maltoligosaccharides)

Gums
Arabinogalactan (a common component of gums)
Acacia/Arabic
Beta glucan
Guar
Locust bean (carob)
Xanthan
Mastic

Starch
Maltodextrin (above 450mg is often problematic)
Tapioca starch
Potato starch
Arrowroot starch
Corn starch

Soluble fiber
Pectin (jam, yogurt)
Flax, Chia & Hemp seed
Psyllium
Bran
Beta glucan

Seaweeds
Alginate, Algal
Carrageenan
Agar agar

Sugar alcohols- anything that ends in “-ol”
Maltitol
Sorbitol
Mannitol
Xylitol
Erythritol (this is the best tolerated sugar alcohol)

Sweeteners
Agave
Lactose
Fructose
Sugar/ Sucrose
Sucralose
Note: dextrose is glucose and is not to be confused with maltodextrin which is starch

Supplements Themselves
D-Mannose (although a monosaccharide, it is poorly absorbed)
Chondroitin Sulfate, Glucosamine Sulfate and N Acetyl Glucosamine (mucopolysaccharides)
Glucomannan (Konjac root gum)
Mucilaginous Herbs- Aloe Vera, Licorice, Marshmallow, Slippery Elm
Mastic Gum