Tools like Sodium , Lithium , and Starlight are often included to significantly boost FPS and reduce server lag compared to the standard OptiFine setup.
Here's how to interpret the different parts of the filename: 1vanillaplusv211821192zip
Open your computer's run prompt by pressing Windows Key + R (Windows) or Cmd + Shift + G in Finder (Mac). Tools like Sodium , Lithium , and Starlight
If it is a : The contents usually go into your .minecraft folder. Tools like Sodium
Are you planning to run this on a or a single-player world ?