Gasx works for me in that, I do not get painful bubbles .There seems to be less of it, and I am able to to pass it lying down.
admittedly, some days there seems to be more. I think it is one of those things we can reduce but not eliminate.
as for smell, sometimes it’s nasty hydrogen sulfide smell.
I’ve also had diagnosed SIBO; and that produced, with nothing to stop it, the nastiest, foul smelling gas and stool of my entire life.
admittedly, I have never tried a fodmap diet and I eat tons of carbs.