Installing the Curseforge App
To begin, download the relevant version of the Curseforge App from the Curseforge App download page. Make sure to click "Download Standalone" to avoid also downloading the Overwolf app. Once downloaded, run the downloaded file to begin the installer. Set the preferred language and the preferred installation location, read and accept the Terms of use and Privacy Policy. Select your ad preferences and then begin installing the app. Once installed, the app should automatically open.
Downloading the Modpack
Once launched, you will be brought to the Minecraft mod menu for the app, which should show "No modpack currently installed" with two buttons below. Click on the search bar at the top of the application and type "Cobblemon" into the search bar. Once the search loads, click on "All" in the top left and switch to "Modpacks" to only show modpacks. From here, you may install one of the two recommended official modpacks, Cobblemon [Fabric] (Web Link) or Cobblemon [Forge] (Web Link). You may also install a different Cobblemon modpack if you wish, but these modpacks will likely include mods other than Cobblemon or be intended for specific servers. Once you have decided on the modpack you wish to use, click the install button to begin downloading the modpack.
Once completed, you may either click "Play", which should be where the install button was previously, or return to "My Modpacks", hover over your installed modpack and click "Play" from there to begin playing!