Once you’ve chosen a client, note if it’s made for Forge or Fabric.
Download the corresponding requirement from one of the provided links below!
Run the installer you downloaded (either Forge or Fabric) and install a version matching the client version you want to install.
Example Installation of the “Meteor” Client for Fabric:
As an example I am going to install the Meteor Client for Minecraft 1.20.4.
Download Fabric and select version 1.20.4 for installation.
After downloading the installer open it by left clicking it.
Now select a version matching the client version you want to install. In this case that is Minecraft 1.20.4.