It's already night and day using a Linux desktop with regard to how vendors support it from a few years ago. Not that long ago, expecting things like Netflix and Spotify to work was out of the question, now you can pretty much assume they are all aware of and support Linux.
More and more hardware vendors, peripheral makers, are contributing their own support, directly to the kernel. I bought a PS5 controller a few years ago but no PS5, because I saw Sony had contributed the drivers directly to the kernel, and they work great. It seems extremely likely that in another 2-3 years, it will surpass 10%. At that point, you'll really be able to expect to go and say, buy a mouse or a monitor or some USB speakers, and have the hardware manufacturer be paying attention to Linux. At that point, I don't really care what the market share is, but normal people can have a big tech alternative without a lot of hoops to jump through, and that's a good thing.