You are not “barely computer literate”. Most people have no idea how to put a OS installer on a flash drive and boot from it. If you know how to format your laptop and reinstall Windows, you know how to install Linux. Install any beginner distro (Ubuntu, Linux Mint, etc) and have fun. Google is your friend if you find any issues. There are a lot of resources online to help you.

If you want to play games or use any specific Windows-only software you may have to do some research, but if just for browsing the web you will most probably have a good time. Don’t be afraid to try and learn.

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The Ryzen 4800U APU is weaker than the Steam Deck, but I’m sure it’ll be able to run plenty of old AAA games, indies and emulators