Galaxy Note9 and Note8 comes with Dual Messenger capability letting you use two different accounts with one chatting app. That means you can keep your accounts for work and home separate, but on the same phone.
To use two accounts, first long press the messaging app icon. Tap "Install second app" from the menu to install the same app again. The second app will be marked with the Dual Messenger logo to avoid confusion.
*Dual Messenger service may vary by apps.
Discover more about Galaxy for yourself.