The Bluefeather Lynx is released in Final Fantasy XIV Patch 6.1 (Newfound Adventure) of Endwalker. Before you can get access to the Bluefeather Lynx Mount to completed all the Main Scenario Quests (MSQs) for Endwalker.
How Do You Get The Bluefeather Lynx Mount?
Make sure you have an average item level of 580 before you start. If you do not have this minimum item level start getting better armor pieces to increase you item level.
You need to earn the Bluefeather Lynx Mount by completing the Ministrels’ Ballad: End singer’s Aria.