I currently play Hogwarts Legacy with DXVK and VKD3D -PROTON and my FPS are stable above 60 all the time, i play in 1080p, and with DX12 my fps drop a lot in several areas because my gpu and cpu never go up to 70%, so with vulkan i can use all my hardware, but i would like to be able to use DLSS and play in 1440p with dlss in quality, in fact when i use AMD FSR2 in quality my fps are more stable than in native 1080p, but it looks ugly, so i prefer native 1080p, my settings are a mix of medium with high, but i would like to use DLSS in quality with 1400p, because if it gives me the same fps as in AMD FSR2 but with a better visual image i would use it, i just don't know how to activate DLSS using DXVK in windows
You can't. It only works on Linux because Proton's NVAPI implementation communicates with DXVK and vkd3d-proton directly to implement the necessary low-level functionality, that's just not possible on Windows.
I currently play Hogwarts Legacy with DXVK and VKD3D -PROTON and my FPS are stable above 60 all the time, i play in 1080p, and with DX12 my fps drop a lot in several areas because my gpu and cpu never go up to 70%, so with vulkan i can use all my hardware, but i would like to be able to use DLSS and play in 1440p with dlss in quality, in fact when i use AMD FSR2 in quality my fps are more stable than in native 1080p, but it looks ugly, so i prefer native 1080p, my settings are a mix of medium with high, but i would like to use DLSS in quality with 1400p, because if it gives me the same fps as in AMD FSR2 but with a better visual image i would use it, i just don't know how to activate DLSS using DXVK in windows