For your hardware like the Steam Controllers and so on.
Currently the only way to update your old Steam Controllers to the Bluetooth firmware is through custom Valve software for Windows. To prevent that from becoming a problem again for Linux users and future hardware, please provide firmware upgrades via https://fwupd.org/
We just merged the Lenovo Legion Go 2 plugin into fwupd, so you'd be in great company if you wanted this. I'd be happy to help, given reference code and permission to upstream into fwupd...
For your hardware like the Steam Controllers and so on.
Currently the only way to update your old Steam Controllers to the Bluetooth firmware is through custom Valve software for Windows. To prevent that from becoming a problem again for Linux users and future hardware, please provide firmware upgrades via https://fwupd.org/