Feature request: 3D cinematic mode

[My1]

is it possible to trigger the cinematic mode in a way that you can plug a 3D HDMI source (like a PS3 with a 3D bluray) to it and having it working?

as the PS5 doesnt support 3DBD like AT ALL, and the cinematic alone doesnt seem to be enough to trigger 3D, something else needs to be done. someone on reddit said they can use an arbitrary 3D source by starting up and then pausing a 3D BD in a PS4 and switching the HDMI, while leaving USB connected so I'd guess there's a decent chance the 3D cinematic has to be enabled via the Processing box.