https://www.tomshardware.com/news/amd-intel-market-share-desktop-pc,37864.html
Mindfactory is not at all representative of the desktop market as a whole. The DIY pc market is miniscule, practically no one but the people on this forum will even take the side panel off of a pre-built, let a lone build a whole pc. If you're buying a standalone cpu at all then you're way beyond an ordinary customer and are into enthusiast territory. You're going to have to start seeing classrooms, libraries, and offices filled with AMD desktops before you can really say they have any significant market share.