Switched from Intel to AMD (9800X3D), GameBar on Win11 necessary?

Hello folks,

I recently switched from Intel to AMD (9800X3D) and was wondering if GameBar is necessary for it to function properly or is it only mandatory for dual CCD chips? I read somewhere that it is required because AMD CPU´s are using it to make sure a game is being launched and the 3D cache can be utilized.

Couldn´t find any real answers to that question so far. I have EXPO and PBO enabled in the BIOS along with C-States to "on" because that could prevent stuttering (haven´t experienced it myself tho).