The Vulkan extension "VK_EXT_image_drm_format_modifier"¹ is needed to (e.g.) make gamescope² work.
Seems³ like this is still missing, at least I didn’t see anything in the 495.29.05 notes.
¹: VK_EXT_image_drm_format_modifier(3)
²: Support for NVIDIA's proprietary driver · Issue #151 · Plagman/gamescope · GitHub
³: VK_EXT_image_drm_format_modifier on <img src='images/linuxlogo.png' height='14px' style='padding-right:5px'/>Linux - Vulkan Hardware Database by Sascha Willems