Ghost of a Tale had quite a bit of buzz some years ago, i played some hours of it in 2017 or '18. (i have it on Steam)
It's nothing like AC, it's a more classic linear stealth game, and it is indeed very pretty, but gets a bit boring tbh.
The guy that made it was an animator at Dreamworks, and i remember following the very early threads on it, on GAF, years ago.