When you type something in Windows Start menu it defaults to a Bing online search, instead of, you know, searching your installed software and files. It's weird.
That’s one of the reasons I’m still on 10, because it only ever seems to give me local results, which is precisely what I want. If I want to run a query for something on the internet, I’ll do that. Restricting the context and dataset that you’re querying against is important and meaningful. I neither need nor want an “Omni-search” thing that’s basically made for boomers who don’t understand that different data exists on different devices and services.
Microsoft is still by far leader in the laptop/desktop OS atmosphere, that definitely counts as a gatekeeper. They're literally the gate to the internet on a shitton of devices.