This problem is related to the download page.

The problem is reported here https://support.zabbix.com/browse/ZBXNEXT-9226?focusedId=1068376&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-1068376

MariaDB 11.4:

zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 zabbix
-bash: mysql: command not found

Working command:

zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mariadb --default-character-set=utf8mb4 zabbix

The install guide is thus wrong: https://www.zabbix.com/download?zabbix=7.0&os_distribution=rocky_linux&os_version=8&components=server_frontend_agent&db=mysql&ws=apache