Please explain this trend to me

SUMMER DEVLOG 2023:

OH MY GOD THAT'S AN UNDERTALE YELLOW REFERENCE!!!!!

sussy

Yeah no, I'm NOT sure that's my name

my sexy fanart

cool boy

Uh oh

WINTER DEVLOG 2023:

Happy Halloween everyone!!! 👻🎃👻🦇🦇

Also image bc why not