There are a few ways to find and play 1.16. Many sites utilize the project, which brings older versions of Minecraft to web browsers. 1. Google Sites & Proxy Websites
: Developers use tools like Eaglercraft or JavaScript wrappers to make older versions of the game playable directly in a browser (though 1.16 is technically demanding for browser play). Portable Launchers Minecraft Unblocked 1.16
If using a portable Java installation, install performance mods like OptiFine or Sodium for version 1.16.5. They optimize rendering pipelines and can double your frame rate. There are a few ways to find and play 1