There's no hiding from the FNAF franchise even in Teyvat.
miHoYo (HoYoverse) has released a set of creative tools for Genshin Impact, and now players are creating a variety of modes.
Some are creating Genshin-based remakes of other games. Recently, a user with the nickname FLOWEY posted gameplay of a specific version of Five Nights at Freddy's on bilibili.
The game mechanics are made in the spirit of the original FNAF, there is a camera system and jumpscares work.
The recording can be found on bilibili at the following link.