Zabbix 7.0 official documentation describes agent "Timeout" parameter as a processing timeout.:

Spend no more than Timeout seconds on processing.

Default: 3
Range: 1-30

https://www.zabbix.com/documentation/7.0/en/manual/appendix/config/zabbix_agentd#timeout
https://www.zabbix.com/documentation/7.0/en/manual/appendix/config/zabbix_agent2#timeout

This behavior is changed since 7.0, Zabbix agent "Timeout" parameter defines only data sending timeout.

Please use correct description in documentation and agent configuration files.