What can I do if there is “Family Link” prompt in notification bar?

If you’re a parent, this new Android 10 feature is exactly for you. Family Link is a set of tools that parents can use to set daily screen time limits, device bedtime, time limits on specific apps, and more for their kids. They can also review the apps children install on their devices and see their usage.
You can exit parental management mode by touching “Settings”->”Digital Wellbeing & parental controls”-> touch menu iconat the top left corner->touch “Remove account”, a series of screens will lead you exit the parental management settings process.