Those fonts are completely indistinguishable from the average cartoon/artistic font from the 2000s which are definitely not created by AI. I don’t like most of them, but I don’t like most of the human-designed ones either. Plus AI-assisted fonts in CJK often means hand drawing a couple hundred characters, maybe more, then generating the thousands of remaining characters (I assume the current crop of SOTA models could change that, but these fonts have been going around for a while), so the odds are what you see in the samples are mainly or maybe even completely human-generated.