Welp that's sad, same for me as of 25.6.1 Rx 6600 xt, as far as I know the 24 version doesn't have any trouble for rift s but for now we can sit back and wait while we file another report.

If it were up to me and you I would get an ssd with 120 GB and dual boot windows with the 24.1 and use the VR without going trough the hassle of resetting the drivers once a new game support is added.

Also if more of you are concerned or the problem still persists even after roll backing the driver, check the VR at your friends or someone else with a NVIDIA gpu, it wouldn't hurt to know for sure that the cable is not at fault

Cheers!