Select the Forge profile in your Minecraft Launcher and hit Play. Why use the .jar instead of a Modpack?

When searching for mod files, it is vital to use trusted sources to avoid malware or outdated versions. There are three primary places to download the official .jar file:

Hanging gardens, stools, and variants for ladders and fences.

The most common hub for Minecraft mods. You can find the Quark page here to download specific versions for Forge or Fabric.