For the education sector and software developer sector these numbers are already met and well exceeded. For the consumer desktop, yes, I think so. I think some big company other than Valve and Google will sell a Linux desktop machine, be it x86 or ARM. When most of the stuff consumers use is through the browser, OEMs clinging to Windows is not going to last forever.

Masking take and permanent marker or pen works too if you don’t have electical tape.

Don’t need to open the case. Hold the soldering iron on the light until light goes out.