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

In description for "ServerActive" parameter we have these 2 almost identical sentences, which are placed between other sentences.

Multiple Zabbix servers/clusters and Zabbix proxies can be specified, separated by comma.
....
Multiple comma-delimited addresses can be provided to use several independent Zabbix servers in parallel. Spaces are allowed.

This is not very user friendly - making understanding of "," and ";" split characters difference harder, as different aspects are mixed in a few sentences back and forth.

I'm sure this happened historically, when we added new features and extended syntax for the value and added new details to doc.

It probably makes sense to remove 1st sentence and possibly re-group other senses, to cleanly separate sections for "," and ";"

ZBX-25145 should be taken into account too.