Can we pull the config sync from Active to standby when you are in standby device ?

Have you tested the auto sync feature as it should work no matter if you do the change on active or standby device ?

https://support.f5.com/csp/article/K14624

If it does not work check the bug tracker for issues and also you can test and schedule a bash script with a cronjob that checks every 10 minutes for example the audit log file and if someone did a change to trigger a config sync :

https://community.f5.com/t5/technical-forum/knowledge-sharing-ways-to-trigger-and-schedule-scripts-on-the-f5/td-p/208068