Halo Infinite - What is it?

I shouldn’t speak and make people upset, but i have no knowledge of Halo aside from Halo Infinite - i’ve generally been a not-an-Xbox guy until this generation.

The story in Infinite is so kiddie that i couldn’t really play it for an hour before bailing. Giant apes that swing giant hammers? This evil enemy that destroys all our forces, but are really chuckling gremlins that pop when you shoot them?

What i played in Multiplayer was pretty decent though.