Clickbaity title on the original article, but I think this is the most important point to consider from it:
After getting to 1% in approximately 2011, it took about a decade to double that to 2%. The jump from 2% to 3% took just over two years, and 3% to 4% took less than a year.
Get the picture? The Linux desktop is growing, and it’s growing fast.
OpenXR/SteamVR is an amazing system, and it’s easy to buy a second hand headset and just replace the face gasket (The Valve index has them attached with a few magnets). Especially with games like VRchat, Half Life ALYX, and modded support in games like Minecraft, PCVR is pretty good right now for newbies!