PoE2 shaders compilation

Hi all,

I have a hardware/technical question.

When I turn on the in-game statistics there is a green shader bar, I mean green when it's loading/compiling shaders.

Is CPU or GPU responsible for that specific case of shaders compilation?

I am asking because usually in other games when shaders compilation occurs (examples MW3, TLoS2, Stafield etc.) it is done 100% by CPU.