I saw this while using Firefox on my wife's Windows laptop yesterday. "Firefox is using 75% of your battery. Switch to Edge." Notification pop up from the battery indicator. Really obnoxious dark pattern.
Edge uses less power than Firefox for similar browsing patterns. Why is the OS monitoring your battery life and making suggestions to improve it (this is not the only suggestion it will make) a "dark pattern"?
It does similar things with boot times (measure and report about slow startup apps) and IE add-ons. I want my OS to make suggestions about changes I could make to improve my experience.
Because it wasn't measuring and making suggestions, it was a scare tactic. I should have screenshotted the notification - I've seen notifications before like what you're talking about, 'X program is causing Y system issue, consider Z.' That's not what this was. It was more along the lines of those bouncy 'Your Computer Has A Virus! Click here to Scan!' banner ads of yesteryear.
It does similar things with boot times (measure and report about slow startup apps) and IE add-ons. I want my OS to make suggestions about changes I could make to improve my experience.