If everything has been done correctly, players should now be able to create a new Fabric profile on their game launcher. This profile should then be selected and the game should now launch with Sodium fully installed.
There is no need to worry about optimizing settings for sodium, as it does this automatically upon launch. It will automatically select the best settings depending on the hardware. However, if players want full control over the settings for Sodium, they can be found in the “Advanced” tab in the options menu.