This may seem patronising, but it's the problem a surprising amount of the time; are you definitely playing games that work with a gamecube controller?
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
