Genshin Impact is full of bosses at this point. Most of them need to be unlocked or are part of a future quest. You must complete Zhongli’s Historia Antiqua: Act II – No Mere Stone quest. To unlock this mission, you must reach Adventure Level 40 and complete the “We Will Be Reunited” mission. Azhdaha is the oldest Geovishap and can only be fought in a Trounce Domain.
Once you have the No Mere Stone, follow Zhongli’s guidance and you will learn more about his relationship with the ancient Azhdaha. Geovishap was actually friendly until he had “erosion”. This phenomenon made him forget his relationship with Zhongli and Liyue.
Beneath the Dragon-Queller Trounce Domain will be unlocked at :
Trounce Domains are locations that contain boss fights, while Azhdaha’s Trounce Domain is east of Mt. Hulao in Liyue.