Even with Steam Play continuing to get into quite good shape for running recent Windows game releases on Linux with ease thanks to the work Valve has been investing into Proton, DXVK, VKD3D-Proton, and lower-level Linux graphics infrastructure, for now at least the overall marketshare is holding steady at around 0.8~0.9% for the past number of months…

Source: Phoronix – Steam On Linux Still Tap Dancing Around 0.9% Marketshare