To be fair, he's given months between notice of a role and when he needs to actually show up on camera. You can do a lot given a couple of months notice, and some pro help. But yeah, no way Kumail got to that point without a little chemical help. Especially since he's never had that kind of physique in his entire life. Buff dude who let it slide and then started hitting the gym again? Yeah, he already has the right stuff in place, just needs to burn off the excess. Guy who has -never- been jacked, ever, in a couple of months? Roids.
And more power to him. Rogan may have a weird ass stomach situation going on, but he's in fairly good condition for being above the 50 year mark. TRT/Roids can do a lot for people who are not actively competing. The only complaint are personal health issues while on those (mostly roids), because if you aren't competing, why would anyone else care? Roids most likely cause your heart to wear out faster than it normally would, but if you are chasing a dream, go for it.
JK seriously, Kumail is roiding it and people who roid unless they are competing for something are doing it wrong. And even then, most people who roid while competing are doing it wrong.