Have the same issue with Synology Surveillance station, reaching out to Synology as per expected they say this is an "Apple" issue and to reach out to Apple.... I am still trying to make them escalate to a Dev i can talk to.
Anyway, i dug a bit deeper and here is what i found:
the culprit file can be located here: ~/Library/LaunchAgents/
each time synology applications run on MAC ventura, in this case the Synology Surveillance station it create a file called:
com.synology.SurveillanceStationClient.plist
This file cause the notification to non stop pop up, deleting the file fixes the issue HOWEVER next time you open Surveillance station the file will be recreated and hence the issue come back.
Here is the content of the file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.synology.SurveillanceStationClient</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/open</string>
<string>/Applications/Surveillance Station Client.app</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
As we can see the string does call the open file to open and the key is run at load,
this is a synology bug that it should not arguably call the "Open" file itself and keep that one in the background.
Synology is not willing to help yet, however - it does seem like the engineer i am talking to via the support ticket refuses to escalate the case.. yet...