The SNMP Trap feature is a Beta feature.
SNMP Overview and Configuration - Cisco Meraki
https://documentation.meraki.com/General_Administration/Monitoring_and_Reporting/SNMP_Overview_and_C...
> Enabling Traps
> Contact Meraki Support to have the feature enabled on the desired organization
However, it appears to have recently been opened to the public.
Therefore, it is additionally displayed in Firewall Info.
In my Org1 environment, I activated it when it was Beta.
However, in my Org2 environment, it appears without activation.