Minecraft gets new "unified" PC launcher for Bedrock, Java, and Dungeons "Instead of having separate launchers for the Bedrock and Java Edition, you will be able to start both versions of ...

Run Minecraft Java on your Steam Deck with my straightforward step-by-step guide, using Prism Launcher to keep things simple.

To make Java Web Start Launcher the default program to open JNLP files, open the Charms bar, click the magnifying glass, and then type "Default Programs" (without quotes) into the text field.