There are three codes to use after the Genshin Impact patch 3.7 livestream to get free in-game loot like Primogems. Our guide lists them out.
Version 3.0, Genshin Impact Wiki
Genshin Impact redeem codes (March 2024) – How to redeem codes, Primogems & Mora - Dexerto
New 3.7 Official Redeem Codes (60 Primogems)
Genshin Impact Server Time Reset & Zones - GameWith
Genshin Impact Version 3.7 update “Duel! The Summoners' Summit” is set to release on 24th May 2023 - MEmu Blog
New 3.7 Official Redeem Codes (60 Primogems)
Genshin Impact redeem codes (March 2024) – How to redeem codes, Primogems & Mora - Dexerto
Genshin Impact v3.7 Redeem Code - Dafunda.com
Genshin Impact 3.7 Redeem codes to get free Primogems and more rewards
Genshin Impact 3.7 Livestream Primogem Codes