Translation problem, I just saw that you didn’t have CTD problems, but sound problems.
There has just been a firmware update, to resolve this issue.
New HP Reverb G2 firmware released
For OpenXR that closes, someone else had the same problem, and from memory, the only solution would be a reinstallation of Windows might solve it. I didn’t have the case, so I didn’t look.
Still, performance with OpenXR would be extra to SteamVR.
I was thinking of changing my Ryzen 5 3600 to the 5600X, we will have to compare our performance on the same flight with the same settings, to know if the price is worth it.