Stadia Bluetooth mode
Bluetooth support for the Stadia Controller is now live
STADIA CONTROLLER (BLUETOOTH Mode) £0.99 - PicClick UK
Unlock Bluetooth on Google Stadia's Controller (including a fix) + Pairing / Testing on Steam Deck
Upgrade Your Stadia Controller to Bluetooth
How to Connect Your Stadia Controller via Bluetooth
Google Sunsets Stadia, but Use the Controller via Bluetooth
Stadia Controller features and specifications - Stadia Help
Google is working on a way for your phone to control Stadia games on a TV
How to Enable Bluetooth on a Google Stadia Controller
Stadia controller works on Nintendo Switch with 8BitDo Bluetooth adapter - in case you missed it : r/Stadia