it all depends on your laptop manufacturer and which drivers they provided. see the power tab on the left? check that tab, if theres an option it should be in the power tab.
i only had switchable graphics when i bought my laptop. my games would run using AMD gpu and other apps would run using the integrated card. after the driver update (drivers from my manufacturer i.e DELL) i noticed there waas a new option which allowed be to use my discreet or integrated GPU as the sole gpu.
drivers from amd wont work optimally because theyre generic drivers
download the drivers from ur manufacturers website