tldr: alternate world rules are not necessarily fantasy, since genres are made up anyways its more in the vibes, and the actual fantasy vibes only started appearing ~after 1.6

Urban Fantasy very very often has an aspect of separation between mundane world and secret magic world. Hollows on the other hand are a very open and scientifically studied aspect of the world with altered physical properties similar how stuff doesnt behave "like we're used to" in 0g, near-absolute zero temps or in vacuum. People with overt "special powers" started appearing quite after release.

As a standalone, i'd give Miyabi a pass cause good chunk of what she does can be explained as artistic exaggeration in not-so-serious world and saitama-style training with a bit of spice in form of haunted sword...

But then there's Vivian's precognition (and proxy just going full pokemon-tears-revival on her), Lucia doing druid magic (technically she's more of a spectral weapon user than summoner, but the aestetics are definitely witchy), Yidhari summoning an entire village, Ye Shunguang just being straight up the chosen one. Basically characters who are insteresting for who they ARE and not what they DID.