A developer has submitted a draft to the KDE team for KWin to hook up a full Plasma VR mode and it looks pretty awesome. As it’s currently a draft, it needs plenty more work before being accepted but the idea behind it and how it looks has me quite interested.
Could be something fun for the Steam Frame too.
Seems like a valve money backed project, would be surprise if this is not on the steam frame (maybe not at launch but later on)