Games ususally require configuration to allow Telemetry data readout.
Most of the time a config file needs to be adjusted or an option in the game has to be activated.
Many games can be configured from within the PC Application with just one click.
You don't play on PC, but on PS4 / XBOX One?
Then please read here: Game Configuration for PS4/XBOX One
Start the PC application, open it from the Taskbar and select the Games Tab.
Have a look on the dedicated help pages to learn how to configure your games.