How to disable disable the IA even after reboot?
You can use the below command to disable the service:
systemctl disable <SERVICE-NAME>
If it is running, it will continue to run until it is stopped manually. It will not start at the next system restart, but can be started manually, or as a dependency of another service
The APMIA service relies on the APMIA startup script. You could comment out the APMIA parts in the script, refer to sysedge documentation