The warranty claims up to a year so you should be fine, I haven’t had many issues if any with Steam support.

All that I would reccomend is emudeck to emulate retro games. Aside from that I don’t see much reason to mess with the system except the settings that you can change (here).

I have a gaming pc but for most major games, I’m glad that they can be played now for a much more reasonable price. Also if someone really wanted to they could get a dock and plug in a monitor, keyboard, etc and use it like a desktop when not carrying it around.