Makes sense they are concerned about losing the "browser" because it's no longer about the search/service quality and more about holding the platform that most people use for access.
It's interesting that not many investors sees this and there is little investment in an alternative browser. It is literally a software worth hundreds of billions of $$$. I hate Sam Altman as an individual but I have to admit that he could see it which is probably why he tried to grab "chrome" when an opportunity presented itself.