Minecraft Java players can now isolate mods to specific worlds by using CurseForge profiles, each with its own mod loader, mod list, and saves folder. This setup circumvents the default behavior of ...
You can install Minecraft Forge for free from the Forge website, and then use it to download and enable mods.
The latest Minecraft Snapshot brings two huge multiplayer features to Java Edition, finally giving it parity with Bedrock Edition in that regard.