In Hollywood anabolics are quite common, since preparing for a role can be a very short term thing, testosterone decreases with age, and very low body fat but large physiques are seen as normal.
Also, shorter people generally have it easier to have a muscular looking physique because of how the muscle mass limit scales with size.
People typically know this, but the social script is to ignore and deflect because we're culturally invested in the story of transformation through personal virtue. It's like pointing out that Santa Claus isn't real.
Say what now?
I'm not sure if stigma should exist, but if something gives someone a huge advantage over a natural, but at the same time at the cost of life or health and other things, without telling they are doing it, it gives a false impression to everyone who may be comparing themselves to these people.
Not to mention the issues some young people get into when they work out a lot and compare themselves to those people and think they are never big enough, and then they get into this state of big, that is only appealing to the very same community, but not average person being misled by groups of celebrities, influencers and other people.
And also if you do go on TRT I think there's no good coming back, so usually it would be much better to try to achieve normal test with natural means first, because otherwise you are going a path with side effects and dependence for life.
Also young people wanting higher test don't understand life very well yet, they will tunnel vision on their single insecurity and think this is the golden path to solve it, while with a little perspective this understanding can change a whole lot.
In my limited understanding - as with many drugs - they're the best (or least worst) available option for people with a condition that's affecting their wellbeing. Untreated gender dysphoria can have terrible outcomes for mental health, and so therapies have been developed which are medicine's best solution so far.
And, as with T, this is where "normal for you", "normal for other people", "normal for the person you think you should be", "normal for the person society thinks you should be" overlap and interact with all sorts of potentially destructive interference patterns - especially if you're young.
Because "normal" varies from individual to individual by a factor of at least 2. But there's no harm IMO in getting tested (2x) so you know where you stand, and have a baseline against which to measure if natural interventions are effective for you.
Having said that, if there's no medical reason, what we're really talking about is people taking medication that they'd be, on balance, physically healthier without, in order to better fit in with society's expectations (endurance exercise, triathlons and so on, is associated with good long-term health outcomes, being jacked is not). And while I don't think artificially boosting T within the normal range is necessarily any worse for your body than, say, being on hormonal birth control long-term is for women, it's still pretty messed up that people feel like they have to.
Plenty who are 70 are not in the Viagra generation yet either.