Something I don't get with Gingium (OP's video) is that he said it really took off 6 months ago - which may be true, aggressive balding does that sometimes, especially to guys as young as him. But I went back to watch some of his older videos where he mentioned having luscious hair and I'm not sure if he just didn't notice it or if he's just deceiving himself but he had already lost a substantial amount of hair - years ago.
I'm almost 31 now with a full head of hair (long-ish hair) and no one would consider me balding. From 24 til now, I've been moving from a juvenile hairline down to a Norwood 1 and a 1.5/2 on the other side and I've been monitoring it quite closely. I am stressed about it, I'm sorry, I know others have it way worse and don't wanna hear it. Anyway, I'm mentioning this because it really shows that hairloss and its impact always depend on the person. He seems to be set early in his life. Nice, good-looking girlfriend, he got a job he loves and he didn't seem to be insecure or mind it too closely, so for him it started "six months ago" aka heavily thinning when in reality it started many years ago for him.