Any hint where this extensions should be added. I added them in SteamVRHMD.cpp function
bool FSteamVRHMD::FVulkanExtensions::GetVulkanDeviceExtensionsRequired(VkPhysicalDevice_T pPhysicalDevice, TArray<const ANSICHAR>& Out)
Startimg from line 570 after
while(Tok … Block. This looks obvious place and there extensions are appnded to end of list but it did not work.
I have Ubuntu 20.04, rtx3080ti, and Vive pro 2, nvidia470.86 drivers.