Here is the step-by-step guide on activating split tunneling with the PureVPN Android TV app.
Press the Hamburger icon (≡) from the top left
Press Settings.
From General settings go to Advanced settings tab.
Under Advanced settings, you will be able to see Split Tunneling.
Press the arrow icon > to setup Split tunneling feature.
Press Split Tunneling. By default, split tunneling is set to All apps will use VPN.
Select Allow only selected apps to use VPN (if you would like to run specific apps via VPN IP and the rest of the apps via your ISP IP).
Select Do not allow selected apps to use VPN (if you don’t want to run specific apps via VPN IP).