I've already seen FAKE TYPE been labeled as Welwitschia Goth, but I considered only their early works as Welwitschia Goth, because their MVs have become more brighter since the start of their music career. Here is Fake Type's channel, take a look at some of their more recent MVs please: https://www.youtube.com/@FAKETYPE/featured
Some aesthetics I'm already assuming they have is DokuKawaii (somewhat) and Superflat Pop.