In Azure Database for PostgreSQL, you cannot completely disable backups. By default, automated backups are enabled with a minimum retention period of 7 days. While you can manage the retention period and configure it up to a maximum of 35 days, there is no option to turn off backups entirely. For environments where backups are not needed, you might consider using manual backups or adjusting your strategy, but automated backups will always be part of the service to ensure data protection and recovery options.
References: