>>306751113
There's some way to get the steamvr desktop overlay to pop up a 'copy' and 'paste' button, but I've never gotten it to work reliably. https://github.com/elvissteinjr/DesktopPlus is a good free replacement that has a proper keyboard with ctrl/shift/etc , and a few other nicer features than the default steam desktop

For $10, XSOverlay or OVRToolkit will also do copy/paste and do nicer multiwindow features like oculus dash does. I prefer xsoverlay slightly but they're pretty much the same. the free desktop plus works well enough just for copy/paste thouguh.