For livestreaming, the Xbox & PlayStation are able to stream within their own devices but also in a barebones kind of state. When a laptop or PC is added though, you gain the ability to add more to your stream overlays & content. Though some tools are needed to imporve the performance of your system as a whole and make your life easier! Make sure you research how to setup devices to your specific system as well to ensure you're not missing anything
Outside of your tech needs to improve your livestreams on Twitch/YT/TikTok/Etc., tools for your setup can make your life easier while streaming & add the streamer aesthetic to your gaming area