On macOS, the Bitdefender Parental Control application has a Social Monitoring feature that checks for cyberbullying:
• Messages sent through the web versions of WhatsApp and Facebook Messenger.
• Images sent through the web versions of Facebook Messenger and WhatsApp.
However, in order to check for cyberbullying, you will have to allow the Kext (Driver) to load and activate Accessibility for the Parental Control app.
Allowing the Kext (Driver) to load
Activating Accessibility for the Parental Control app