Looks like Bryan Johnson just clarified that the athletes have not been on PEDs for long.
Enhanced’s own update says its released substance data covered a 12-week trial period before the Games. The broader medical program allowed a treatment period of up to 25 weeks, followed by long-term monitoring. Enhanced also says 36 of 42 athletes were in the clinical trial, with 2 of those competing naturally, and 6 athletes outside the study, with 2 of those also competing naturally. Individual athlete protocols are not being made public.