You don't want to use the terminal every time.
Find JDownloader in the list, check the box, and click . jdownloader steam deck
To install any software outside of the Steam Store, you need to leave the gaming interface. You don't want to use the terminal every time
Furthermore, JDownloader is built on Java. Linux distributions (like the Steam Deck’s SteamOS) require a specific Java Runtime Environment (JRE) to run .jar files. The Steam Deck does not come with Java pre-installed, and running Java apps on a read-only operating system can be tricky. Furthermore, JDownloader is built on Java
The installer will download the latest core files. This may take a few minutes.
Installing on a Steam Deck is a straightforward process that allows you to manage high-speed downloads directly on your handheld. While JDownloader does not have an official native SteamOS app, it is easily accessible through the Flathub community package or as a manual script. Method 1: The Easiest Way (Discover Store)
