I've always considered most PEDs to be recovery-enhancing drugs rather than enhancing performance directly, including AAS. The idea being that PEDs allow athletes to train harder and train more frequently than a non-PED user. So obviously the athlete who trains more intense/frequently is going to improve to a greater/faster degree, all things being equal.As a member said earlier AAS will effect your endurance mostly by allowing you to recover faster from more training than you naturally could.
Without it you might recover from 4 sessions per week and with AAS you might recover from 6.
So its a huge deal in the long run.
In my experience the right dose is the one you can manage without getting side effects.
There are other medications that raise RBC count beside EPO tennis players are getting popped for Roxadustat might be interesting.
Also one important factor for AAS is recovery between round if thats the kind of sport you are in.
And good point that isn't emphasized enough is what does "endurance" mean to different people. This is unavoidably related to the kind of sport you are in.
Improving endurance to a 250-lb bodybuilder means something entirely different to improving endurance for a 180-lb runner seeking to improve his 10k times. It's a fundamentally different questions with different goals that has different answers depending to the sport-specific goals.
We often overlook this. Or assume that everyone asking the question has similar goals to us since this has always primarily been a forum populated by mostly bodybuilders/powerlifters/other strength atletes.
