Cobblemon is only available on Minecraft: Java Edition and not Minecraft: Bedrock Edition (Minecraft: Bedrock Edition is the version which the Xbox gamefront, consoles and mobile devices run on). The latest version of Cobblemon is currently available on Minecraft 1.20.1. These actions are considered piracy and are illegal.
Note: This guide will NOT teach how to install Cobblemon via illegitimate clients such as TLauncher etc. However, the methods listed here will be the generally used and easiest way to get Cobblemon running as quickly and easily as possible. There are multiple methods in which you can go about installing Cobblemon and not all methods will be listed here. This guide will teach you how to install and begin playing the Cobblemon mod.