Not quite. Bill went big on the philanthropy angle to sell his "likable geek" image and bury his cutthroat businessman past.
Jeff is more on the midlife crisis egotrip with the space-dick measuring contest, the biggest yacht competition, and personal trainers to become buffed middle-aged billionaires track.
Drugs alone don't make you buff. It's drugs/hormones, exercise, and nutrition. The kind of personal trainers these guys get probably helps them with all these elements (or has the connections to facilitate it).
Oh I know all about what is needed to make you buff. I work with the guy that has the highest natty bench press record in our state in the 205 weight class and he's not far ahead of where I was at my peak. Bezos is 50+ and was born with the physiology of a pencil necked geek. He's probably on some mixture of HGH and TRT and I'm pretty sure there's some roids thrown in there. His vanity is probably knocking years off of his life, if not decades.