Ok, guess you'll never know then.
They aren't control pants or spanx, which I do have and have worn for nights out. But I could never wear them for day to day, sitting at my desk working, going to the gym etc. We're talking light control every day pants here. But they do have a bit of a drawing in effect, on me anyway, I think just because of the fairly thick cotton and the stretch panel across the top. Similar to the sloggi concept, from what I've seen, though ive never tried them.
Obviously there are limits to what a pair of pants can do and the effect will depend on how overweight you are and what shape you are, but I, like others, have recommended the Amazon Wirpara ones as they are a reasonable price, very comfortable so you can wear them every day, including when eating out (I wear them to sleep too) i.e no itchy lace or tight seams or really control spandex and, for me, they shape my belly in a bit and make me feel like its not all hanging out. I only have normal baby belly over hang and bloating though.
I wore m and s pants for decades before I discovered these, all thrown out now and I only wear the Amazon ones because I find them super comfortable and a little shaping, which is all I want for every day pants.