With In allow tearing only in Avatar Frontiers of Pandora, fps are clearly in sync and limited at FPS (60 base frame x3)

This is a weird one, any other game, if i don't use sync, my frames are clearly not in sync with my monitor. but with Avatar..., i can select allow tearing with 60 as base frame and x3 mode.

Laptop with RTX4060 and Ryzen 7640hs (so Radeon chip too).

It seems that the calculation are made with RTX4060 but the display is managed by the Radeon. Really weird issue.