DXVK-NVAPI 0.9.1 is out today as this NVIDIA NVAPI implementation that is used by Valve's Steam Play (Proton) with DXVK and VKD3D-Proton. This is the important piece of the Steam Play puzzle to allow for NVIDIA DLSS, NVIDIA Reflex, PhysX, and other features for Windows games running on Linux...
With the upcoming Linux 6.20~7.0 kernel cycle it looks like the time slice extension work could finally been merged, which has seen various attempts over the past decade. Time slice extension for the Linux kernel implemented using Restartable Sequences "RSEQ" allows user-space processes to request a temporary, opportunistic extension of their CPU time slice without being preempted...