File Name- Seus-ptgi-gfme-shaders-all-versions.zip -

Note: You must have a GPU that supports OpenGL 4.6. Integrated Intel graphics will likely crash.

The most important part of the filename. Minecraft changes its rendering engine with every major update (1.16, 1.17, 1.18, 1.19, 1.20). A standard shader might only work on one version. implies the archive contains multiple shader files tailored for different OptiFine or Iris builds, saving you from hunting down legacy downloads. File name- SEUS-PTGI-GFME-Shaders-All-Versions.zip