Open Minecraft, go to Options > Video Settings > Shader Packs.
Inside the Derivative-Shaders-All-Versions.zip, you will typically find several profile presets: File name- Derivative-Shaders-All-Versions.zip
You must have Iris (recommended for performance) or OptiFine installed. Open Minecraft, go to Options > Video Settings
Downloading the full "All-Versions" zip file is often preferred over single-version downloads for several reasons: File name- Derivative-Shaders-All-Versions.zip
Select your preferred version from the in-game menu and click "Apply."
If you are looking to enhance your Minecraft visuals, here is everything you need to know about this shader collection. What are Derivative Shaders?