If I visit Google, or Gmail, or Gmaps, YouTube, or anything else, with a non-Chrome browser, the top of the screen will ALWAYS have "do you want to install Chrome?" nagware. You can dismiss it in your session scope, but next time you come back, so does the message.
Why is that not a problem, and what Microsoft does is a problem?
Is it better on battery tests? Yeah, it is. Is it safer? It very well might be - but we don't know, since we're all running ad-blockers on non-Edge browsers, so our experiences are anecdotal at best.