Fugaku 富嶽 - Where does it fit in?

[Orchid_Tapestry]

Hello, Newbie here to your Neo community. I've tried to search, but did not find the answer. Hope I'm not doubling up on a question.

I'm wondering where Fugaku 富嶽 fits into the neofinetia species? I was shocked, as I read others were that it's not registered.

I've read it's used to cross with other varieties to make other variations and I'd believed that other varieties came from it such as FUGAKU-HOU 富嶽宝

Is it a generalized variegated variety as the Korean Amami Shima 奄美縞 appears to be?