As PojavLauncher is open-source, free, and works with legal copies of Minecraft: Java Edition (the devs have denounced pirating the game), it has been deemed legal software, according to Microsoft ...

How to download and play Minecraft on a Chromebook Bedrock Edition, Android version, and the Java Edition too!

In this tutorial, I will guide you through installing, configuring, and optimizing shaders in Minecraft Java Edition—not available in the Bedrock version used on consoles and mobile devices.