Sorta, Zwift doesn't give a lot of insight into how the w/kg system is reflected in terms of in game speed, but it's not the same as outdoors. I'm 190lbs with a 342FTP and I do not pull away from light guys on the flats the way I would expect on the road. But the light guys do pull away as expected on the climbs. Seems heavily weighted toward w/kg and not pure watts.