By the numbers, Microsoft is still incredibly relevant. At the same time, I can't even remember when I last used any MS product. It's not a boycott, there are simply no points where their stuff intersects with my life. I can imagine I'm not the only one, and that's not a comfortable position to be in for them. However, it's also difficult to see how they could ever break out of that. From where I'm standing they look like a partly consumer-focused IBM: rich, powerful, calcified, eternal, but computing has largely moved on and left them behind.
As a former MS user, I wish them all the success in the world turning this around.