DXVK 2.6 brings expanded Nvidia Reflex support and lots of game fixes for Linux / Steam Deck
DXVK is a tool used by Proton that translates Direct3D 8 / 9 / 10 / 11 to Vulkan. It's one of the projects that enables Windows games to run so well on Linux platforms like Steam Deck. Version 2.6 was just released.
How to setup OpenMW for modern Morrowind on Linux / SteamOS and Steam Deck
How to install Hollow Knight: Silksong mods on Linux, SteamOS and Steam Deck