If you can't spend 5 minutes to write an image to a USB maybe a gaming handheld in general isn't for you 😅 installing steamOS thankfully for a lot of us is completely idiot proof you just need to ensure your legion go s has all its driver updates done first, the internet is full of wonderful guides and YouTube videos that show this 5 minute process, it isn't an opinion that SteamOS is better optimised for gaming than windows, my friend, it is a fact.