Zabbix documentation directly refers to the Prometheus documentation, where it is stated that it works as follows:

For example, given the dataset:

http_requests_total
http_requests_total{replica="rep-a"}
http_requests_total{replica="rep-b"}
http_requests_total{environment="development"}

The query {{http_requests_total

}} would match and return:

http_requests_total
http_requests_total{replica="rep-a"}
http_requests_total{replica="rep-b"}

Does this mean that the mentioned functionality/filtering is not implemented in Zabbix?

If so, wouldn't it be possible to port this functionality to Zabbix so that it would be a standard part of the Prometheus pattern step?