Either I am stupid or you're being dishonest. There is no one click way to disable it. Only on pro versions of windows, with a group policy otherwise a couple of obscure registry keys no regular users know.
No group policy is needed on Windows 11 Pro, it's in the settings:
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Type something in the Start menu
Top right meatballs menu button
'Search settings'
'Let search apps show results' -> Off (or disable only Bing)
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I don't know about the Home edition.
I stand corrected. I didn’t know the Home Version has no option to disable it. You are right for calling me out.