Discovering that the SD can be used as a computer too, with all the bells and whistles has been very fun.

A useful note on that, the desktop app “store” is Flathub

flathub.org

I recommend Konqueror as a good file manager/web browser hybrid that you can run fullscreen in gaming mode on your Steam Deck if you add it to steam as a non-steam game.

I recommend CoreKeyboard as an alternate touchscreen keyboard to Steam’s for when you are in desktop mode or can’t use Steam’s keyboard for some reason.

flathub.org/apps/org.cubocore.CoreKeyboard

If you want file sync, try out Syncthing/Syncthingy, it is like DIY cloud file storage but it is actually really easy to set up.

flathub.org/…/com.github.zocker_160.SyncThingy

Inkscape is a great vector image editor that runs really nice in fullscreen/gaming mode on the Steam Deck

flathub.org/apps/org.inkscape.Inkscape

Kdenlive is a fully featured video editor that runs really nice in fullscreen/gaming mode

flathub.org/apps/org.kde.kdenlive

One final recommendation, CoreHunt, this app doesn’t run well in fullscreen/gaming mode on the Deck but it is such a useful and quick file search utility (with good fuzzy search too) that I have to recommend it. If you are still getting used to the file structure of the Steam Deck and get lost/can’t find a particular file or folder location CoreHunt can save you a big headache.

flathub.org/apps/org.cubocore.CoreHunt