Low fodmap definitely the way to go.
Download the Monash Uni fodmap app.
Fodmap is also about portion control as some things are OK in small quantities, but can cause issues in larger quantities. Like broccoli. At 3/4 cup you are OK. Any more and it becomes high fodmaps = tummy issues. The stalks are high in fodmaps, so best avoided.
Read up on stacking fodmaps
Follow for 4-6 weeks minimum before reintroduction, and don't stop just because symptoms stop.
Do not reintroduce every few days. Each re-introduction should be done in 3 steps, over three days. Increasing amounts each day. Symptoms can take up to 24 hrs to show up.
Have a break for a few days, and the start another re-introduction.
You can make your own chips, no need to avoid. Potatoes don't have fodmaps in them. What you cook them in causes issues as does their coating (lots of places coat in wheat flour etc)
Be careful with probiotics, they can contain fodmaps.
Chocolate contains fodmaps. Go with dark chocolate if you can.
If Kifur is fermented, it is best to avoid on the elimination round, fermented food are not good for a low fod diet. One you know your triggers, you might be able to tolerate it.
I used to suffer IBD D&C, but my diarrhea has stopped mostly now, because I follow lo-fo all the time. I used to think going between D7C was normal for me, but it wasn't.
Pasta that is wheat based is a no on lo-fo until the re-intro phase.