Do you track your daily macros/calories and have you done progressive overload strength training continuously for 5+ years, logging your workouts?

I find most people will usually hyper optimize things like buying supplements and wrist trackers that have little p-size effects before optimizing things like muscle mass and macros/calories that the scientific literature actually says have sizable effect sizes.

I'm doing both. I've only got so many years remaining and very few of these things "only" work if you've also optimized your diet and exercise. I do acknowledge that diet and exercise have a bigger impact than any supplement, but they're not mutually exclusive.