If it was fake then it would be nonsensical as fuck.
If someone goes through the trouble posting this shit on F95, the only logical explanation would be if they also had control over the patreon in order to drum up potential subs in order to get money but as pointed out, nothing has been posted on patreon.
Which means that if this is apparently fake, someone went through the trouble of hacking into a literally useless account on a porn pirate forum, spend time making actual renders for.. what purpose?
Even a troll has an end goal in sight, the amount of effort for a game that was far from popular even when it was fresh simply doesn't make sense. No one would go through all of this shit for literally zero payoff.
Just apply occam's razor to this shit, the dev likely either forgot passwords or just couldn't be fucked posting yet.