It was true in 2023, but I haven't found any updates on the story since then.
It was sending a request to the domain "bingapis.com" with HTTP referer of the current page. Thus, sending your URL to Microsoft. It was a feature that could be turned off, but was on by default.
https://www.reddit.com/r/AskNetsec/comments/96nwgd/microsoft... - With search suggestions enabled, search suggestions and URLs entered into address bar go to Microsoft regardless of which search engine is selected (Really, typing http: or https: ought to mean no suggestions generated at all)
They should, yes. Don't know why DOJ doesn't. But in case of the EU, Microsoft is handled with very soft gloves in all aspects because corrupt idiotic bureaucrats on all levels can't imagine a life without their Windows, Outlook and Excel. So the throw their hands up in the air, cry "but there are no alternatives, we cannot do anything here" and continue their extended post-lunch-sleep.