LOL glad to see i'm not the only one that got weird out by this.
Now, saying as someone who is an digital artist: It's not "FULLY" GenAI.
It seens to me that is an AI upscale (like those waifu2x sites) but the whole vibe of this artist is weird too... He came into existence this year and already posted dozens of pieces, all very consistent with each other. If I had to guess, given the weird vibe of the drawings themselves (always looking foward eyes) and all the other stuff, this person uses AI to generate the initial art, but probably has a good technical knowledge to minimally over-draw them (fixing things that would make it very clear that is GenAi) that's why it ends up being so strangely consistent. Still very shitty in my opnion.
tho, there's a real chance that i'm wrong and he just has a weird style and posts drawings in very low resolution because of patron-exclusive content.