A review of Eaglercraft 1.20.1 reveals it is a fan-made attempt to bring modern Minecraft features to the browser-based Eaglercraft platform
: You can create your own 1.20-compatible server using providers like Sealos or Aternos by installing specific plugins like ViaVersion and ViaBackwards.
If you search for "Eaglercraft 120 1 hot" on Google, you will find hundreds of sketchy link shorteners (adfly, linkvertise) and fake "download" buttons.
Disclaimer: This blog post is for informational purposes only. Eaglercraft involves complexities regarding intellectual property rights of Minecraft/Mojang/Microsoft. Always support the official creators when possible.
or Python-based launchers offer features like "Instant Boot" and particle reduction to keep FPS stable on low-end hardware. Multiplayer Compatibility