Hi @lilpp187 - You might need to do a factory reset of your controller to fix the issue. Here is how to do that:
If you're experiencing issues with your Stadia Controller, it can be helpful to perform a hardware reset.
for 10 seconds.
during the 10 seconds, even if the status light blinks or the controller rumbles.
.
until the controller rumbles and the status light turns on.
ya your controller is trash is all it takes up way too much bandwidth I tested it and it took up almost 60% of the bandwidth like that's more then my phone computer xbox series s all take at the same time. it's trash I just use my xbox controller cause it's better and doesn't need wifi it's now flawless