>>139378731>>139378811Honestly just look at wikipedia, Wikipedia has a strict definition for anime and doesn't fall into marketing gimmick or style wank and actually calls anime anime and other stuff animated series/movies
Outsourcing animation to Japan doesn't make something an anime, and a Japanese production outsourcing animation to Korea doesn't make it a non-anime
Some cases are more borderline, but probably the most edge case is the Calimero anime and a few coproductions made primarily for European markets but were made primarily by the Japanese studio