Earlier quoted context omitted.
Open Google or Youtube in Edge an you'll see a huge banner advertising Chrome. That use to happen for practically every other browser.
A company promoting their own products on their own websites is far from being criminal. Amazon.com right now just showed a giant splash for buying an Echoshow on their home page.
That's the premise behind antitrust (even though in practice, its 50 years behind the times). If you have dominant market share, things that are otherwise lawful^ aren't anymore.
^Antitrust stuff like anti-competitive behaviour isn't criminal regardless.