st/oxr: Make debug utils forcible
And don't always turn it on for XR_KHR_vulkan_enable, as it would result in crashes on old Vulkan drivers (like those on Pixel 3).
Alternative to !2043 (closed).
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And don't always turn it on for XR_KHR_vulkan_enable, as it would result in crashes on old Vulkan drivers (like those on Pixel 3).
Alternative to !2043 (closed).