I blocked bing.com on my PC (invalid hostname resolution through hosts entry) because despite best efforts to disable any websearch functionality in Windows search, it still showed up.
It took 5 minutes to get my father in law to open teamviewer because he kept clicking on the first result which for some reason brought him to the teamviewer website instead of opening the fucking software he had installed already.
It's just a search bar located in the start menu and on the task bar, that combines local search with web results. For pro users it is pretty terrible, but I wouldn't be surprised if many regular users like it. You still have a normal local file search from within the file explorer.
That's not true, all my files are stored on onedrive nowadays, which is super fast and responsive. Oh wait... it's actually slow and laggy and randomly deletes stuff from your pc and you're not even allowed to give your files perfectly normal names like .aux files in a LaTeX project.