For users running macOS 10.15.7 (Catalina) , the primary and most reliable way to access the service is through WhatsApp Web The Compatibility Gap on macOS 10.15.7 The current official WhatsApp Desktop app macOS 11 (Big Sur)
“You have the data. Now run before they update the servers.” whatsapp web mac os 10157 link
System requirements:
Correct link for WhatsApp Web on macOS 10.15 (and any Mac):
🔗 https://web.whatsapp.com For users running macOS 10