FAMGM: I used to wear them under the belly, but it isn’t possible now for me to find business shirts long enough to tuck in. I now wear them over the belly, with suspenders.
Generally under my belly hang, I find it more comfortable and less restrictive to have my belly hang over. I just have to make sure I get long enough tshirts to cover the gut😉. Also my fat pad tends to fill the crotch of my jeans.
I used to put it over my belly, but as I gained weight recently I prefer it to be under. It’s really uncomfortable otherwise, if my belly is visible so be it. I prefer to feel comfortable.