Your Legion 5 supports Tobii Horizon which is powered by the Tobii Experience app. The app comes shipped with your laptop. But in case you have reset your PC, you can find the app on Microsoft Store.
To learn more about using Tobii Experience, read more here.
Head tracking in gaming
Tobii Horizon gives you software-based 6DoF head tracking by detecting your head movements with the built-in web camera. It is currently supported in 50+ game titles, such as Star Citizen and Elite Dangerous. Experience the sensation of extending your field of view and increase your situational awareness in-game by being in control of the in-game camera with your own head movements.
Check out all the supported games here or in the Tobii Experience app by clicking on Game.
There are games that have integrated head tracking and then you will find the configuration settings in the in-game menus. But there are also games that need to be modded with Tobii Game Hub (see below) and then you will have to configure the head tracking settings in the application instead.
You can also find the supported games library in Tobii Game Hub so download it now to get started.