The one thing to remember about 580s vs 1080Ti sales though is that miners bought them like craycray and the gpu prices went up. And I doubt miners are doing the steam hardware survey so the stats might be skewed a bit.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850