Several repositories provide a that contains the entire game. For example, the repository JaydenYoriTheBeast/EaglerCraftX-1.20-File-html offers a version described as “EaglercraftX 1.8 but coded into 1.20 version html file WASM‑GC Improved & Enhanced”. Downloading the HTML file allows you to play offline (once loaded) and ensures you are using a specific, audited build.
If you want to play vanilla Minecraft 1.20 on a device you don't own, If you are sitting at a gaming PC with a proper launcher, there is no reason to use this over the real thing.
Cherry groves, armor trims, camel mounts, archeology, and sniffer mobs. Safety and Avoiding Scams