The only areas where the new font reflects are Contacts, the notification area, and the Settings menu. It does not affect apps, including YouTube and WhatsApp, which retain Roboto. Even Samsung's own apps retain Roboto. However, when you a pick a different font from the Font menu, that font reflects throughout the entire UI, including apps. I wonder how this glaring detail went unnoticed through beta testing.
I am using the "Default" font. Which is the new font. It does not reflect in any app. All apps still use Roboto. I like the new font. It should've been deeply integrated into the entire system, as all the other fonts are.
