Clearly desktop is too large a target to be solved effectively by a herd of cats. Lots of good intentions and half-standards, but no synergy or force to in darkness bind them.

I have been using Linux/Unix on desktop since the nineties, and while it has come a long way, it feels like that last 10-20 percent will never happen. It's that part that needs a manager with a large stick/carrot willing to make (informed) decisions and enforce them.