Go to item list. In filter select item type any of "Zabbix trapper", "SMTP trap", "Dependent"
Observe: "Update interval" filter field is hidden. For any other type this filter is visible.

Go to discovery list, repeat the same.
Observe: "Update interval" filter field is hidden only for "Zabbix trapper" type.
Expected: It should work same in item list and discovery rule list.