Back when I was at MS I heard of accessibility PMs walking into VP offices and telling them that their newest version wasn't shipping until accessibility was 100% done.
I don't know if it the same now, but when I was there certain aspects of the customer experience were held sacred.
I wish it was still the same now. I updated to the latest Win11 feature drop thing, hit Windows + E to open File Explorer, and heard "File Explorer. Home, pane." And that's it. Luckily I know how to change the folder that File Explorer starts in to something useful. But a new computer user? They'll be confused and not know if they broke something, or if they're doing something wrong, or how to get to their files. But at least with Windows, I can quickly and easily browse the web and do just about anything I need to. Of course, I cheat and pull out Emacs with Emacspeak on WSL, and I'm like the only blind person that does this on Windows so I would never, ever expect other blind people to reach anywhere near WSL for anything.