Anything a few pegs down from Arnold/Rock type physique (which is modest compared to Liver King) isn’t natural and if you see someone like that they’re definitely juicing. The dirty little secret is some of these drugs are getting so effective you could sit on your butt eating Doritos and still get better results with them then a guy who hits the gym all day 7 days a week. And its not even close, we’re talking orders of magnitude better.
I’ve lifted for 30+ years. It’s surprising how many are either doing a high level TRT, or low dosing juice nowadays.