As mm said, downstairs growth is often one of the first changes to present itself after starting T. I couldn't say why, but I guess that part of our body is just sensitive to the extra DHT. It's usually not much, but obviously there are extremes on both ends—those that receive basically no growth, and I have seen a couple cases of men experiencing over 3 inches, but know that receiving more than, or even close to 3 inches, is probably in the 98th-100th percentile (just a guess, I don't have any numbers). The medical term for this phenomenon is cliteromegaly, which just means an enlargement of the clitoris.
I have heard of men finding ways to stand to urinate without a STP (stand-to-pee) device or surgery, involving some pulling on things to sort of "aim" the urethral opening as best as possible. I can't shed light on this myself, you'd have to do some more research there, or hope that someone here has achieved it. But most often, STP devices and urethral lengthening, as part of either phalloplasty or metoidioplasty, are the only ways one can stand to pee.