We supported etfr on vulkan through XR_META_foveation_eye_tracked + VK_QCOM_fragment_density_map_offset extension：
https://github.com/EpicGames/UnrealEngine/pull/11336
But the pr is denied, Do you have a built-in solution to support eye tracked foveation or do you prefer implement this feature on pico fork.
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We intend to support it through the vendor agnostic extension rather than the Qualcomm specific one through this PR: https://github.com/EpicGames/UnrealEngine/pull/13438/commits/f07a16929b3d1daf00add3c7d23e85c32ab463eb
The idea was that with the FDM offset extension natively supported, the vendor plugin(s) would be able to support XR_META_foveation_eye_tracked and a custom fork would no longer be needed for ETFR support. Let us know if this is not the case for you.
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