I would say there are 2 additional problems with grains. They are naturally inflammatory, but then are much worse in that because they are the worst at carrying pesticides into our guts. Soybeans are some of the absolute worst, but most grains are really bad too. So the grain itself might not be awful, but it’s made so by the cocktail of awful stuff sprayed on them.
I would say just test it by going entirely grain free for maybe 3-4 weeks and then reintroduce it and see what happens. When I did, I found out all of my “allergy” symptoms were directly related to my grain consumption. Now I can pinpoint exactly what happens, the podcast made it even more perfectly clear. If I have breads or grains for more than a “one off” but do it for multiple meals or multiple days in a row, I lose at least one full day (often two) of recording because I sound disgusting, am crazy congested, and voice sounds like my nose is plugged.