If you're removing your rear from the seat while leaning forward, then maybe. The point of squatting, besides the angle of the innards involved, is the pressure on your bum. Leaning forward, or raising your feet of the ground, as is mentioned, won't decrease the pressure. That motion is more likely to increase the pressure. There are a number of articles regarding this rectal pressure as it contributes to hemorrhoids. IANAD...just my 2 cents.
Or raise your legs a bit, continuing to let the seat carry your weight but raising your knees by pointing your toes or just lifting them. Though I've only thought about trying out squat toilets (or "perching"), I can anecdotally report that leg-raising by itself does have some effect.