Gamescope/Wayland support for SteamOS 3

(To begin, I would like to clarify I know SteamOS 3 is not out, and may not be for some time. This is a feature request regarding a portion of this distribution providing upscaling and game performance benefits.)
As many may know, SteamOS 3 is coming soon. A key piece of this is its compositing window manager known as gamescope.
https://github.com/Plagman/gamescope
As of now, the Nvidia proprietary drivers lack some features required to make this work. To quote the Github page,

Can support NVIDIA if/when they support atomic KMS + accelerated Xwayland + Vulkan DMA-BUF extensions.

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The open source community drivers currently suffer from performance problems that could impact gameplay performance. Adding this functionality to the official driver would allow for equivalent/greater graphical performance in gameplay to Windows.
On a side note, I would also like to see DLSS 2 support.
Thanks for your consideration.

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I have good news about this. Probably very soon NVIDIA driver will support VK_EXT_image_drm_format_modifier.

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My fingers are crossed so hard that they are bleeding.

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