Solved on Expo Forum (https://forums.expo.io/t/push-notification-unable-to-retrieve-the-fcm-server-key-for-the-recipients-app-make-sure-you-have-provided-a-server-key-as-directed/48529/2)

Thanks for attention @adamjnav creating a new project I could see that I forgot of set my experienceId: “@myexpouser/myproject” and my app.json android: { …, “useNextNotificationsApi”: true, “adaptiveIcon”:"… }