Case:
Memory usage increases when there are non-existent DB monitored items to be monitored.
When deleting the relevant template, no increase in memory usage occurs.
No other applications are running in Windows environment except ZabbixAgent2 and Base standard applications.

Envriment:
ZabbixServer 6.0.16
ZabbixAgent2 5.0.34,6.0.16
WindowsServer 2012Base / 2022Base

Use Template:
[Template DB Oracle by Zabbix Agent 2]
[ZabbixAgent2 Windows]

Logs:
No particularly important logs were output.