Getting my steam deck tomorrow. Already had Linux like steam deck on my laptop a while ago (didn’t work well because fuck Nvidia)

But wanted to know what you all think is important to put on a steam deck, that’s not something that’s not what duckduckgo says with the websites it has. (I worded that horribly)

What are some niche things can I could do/install/play on the steam deck that most people wouldn’t really do or think about doing?

I don’t know a lot about Linux as I wish but I know a ok ish amount. Just wanting to find anything really interesting or useful to do with my steam deck

Also anybody know any casual games I can play randomly on public transit and don’t have to sit down and play. Things that I can just easily stop. (Something like balentro kinda way you can just stop whenever)