Dark Mode: One of the most anticipated features, Android 10 brings system-wide dark theme. This can be enabled by going to your display settings.
Navigation Gestures: Android 10 is also bringing new navigation gestures similar to the iPhone. It has a learning curve, but feels fresh. There is a single bar at the bottom and new handle-bar corners that trigger the Google Assistant.
Digital Wellbeing: The Wind Down feature now includes a Grayscale mode, which can be enabled manually. There is also the Focus Mode, which lets you shut notifications from the apps that you select.
Privacy: There are improved privacy settings on Android 10, one of the biggest being app permissions. Here you can see that we have given location access to Facebook only when the app is in use.
Parental Controls: There are some new Parental Controls as well which asks you to download a new app called Family Link. As a parent, you can control screen time and select the apps you want your kids to use or not use.