Linux has always been fine for a minuscule proportion. It has failed to be a viable 3rd option on the desktop for 98% of the population.
When you have 90% market share, you have a monopoly. It hinders innovation.
https://html5test.com/results/desktop.html
https://html5test.com/results/mobile.html
Sure, Apple has made Microsoft a little better but the monopoly that Microsoft has really means that they don't need to compete.