As described in this issue (https://github.com/SteamDeckHomebrew/decky-loader/issues/380), the entries for the plugin don't appear when running on the beta branch of SteamOS. Updating the plugin to the newest DFL version (3.19.1) & building does restore functionality.
As described in this issue (https://github.com/SteamDeckHomebrew/decky-loader/issues/380), the entries for the plugin don't appear when running on the beta branch of SteamOS. Updating the plugin to the newest DFL version (3.19.1) & building does restore functionality.