8BitDo says its controllers are now compatible with Steam/SteamOS. The announcement specifically mentions three models and advises users to update their controllers and Steam client to the latest version.
Yes, proprietary software on Windows or Android. It gets even more “fun” though, as you need to use different software for different controllers. The “8bitdo Firmware updater” works for controller like the Pro 2, but if for example you have the Ultimate 2 you need the “8Bitdo Ultimate Software 2” instead. That thing will also crash if you have any other 8bitdo device plugged in. So yeah.
How to update the Firmware update? I assume on Windows via Wire and with proprietary software?
Yes, proprietary software on Windows or Android. It gets even more “fun” though, as you need to use different software for different controllers. The “8bitdo Firmware updater” works for controller like the Pro 2, but if for example you have the Ultimate 2 you need the “8Bitdo Ultimate Software 2” instead. That thing will also crash if you have any other 8bitdo device plugged in. So yeah.
Oof.