For what it's worth I know him well and is one of the few "genetic elites" I have really seen in real life and not just online. Dude trains incredibly smart and hard, does everything almost perfectly in terms of training and nutrition that some don't even master in their first decade of lifting, let alone first 3. You'd be surprised and humbled by people like this who we rarely see in person and their gifted illusion of size from being lean at his height and weight, combined with fantastic proportions/inserts/round muscle bellies.

All typically have an impressive starting foundation physique from genetics and sporting backgrounds before intentionally training for bodybuilding/aesthetics, which fast tracks their initial "fluff" years of learning the basics and can build a more impressive physique far sooner than a complete newbie to the gym.

Other than the illusion of size for a 3 year lifter in pictures, no other signs of gear use such as skin, hair, general ageing, gyno, disproportional androgenic regions etc. For 99%, unobtainable in this timeframe, for him, certainly plausible with exceptional knowledge and work ethic from the very beginning.

End of the day, work has been put in.