How android whatsapp backup in iPhone
How backup old android whatsapp in new iPhone
iPhone 12 Pro Max, iOS 14
You can't. On Android, WhatsApp, chat history is not stored on iCloud, on iOS it is.
That isn't possible without third party softwares. Warning! ; WhatsApp data through third party software has the risk of data being compromised. Because the data will be churned through third party servers, which may or may not be encrypted. Be judicious while selecting the software and taking this call.
WhatsApp is not an Apple product. Contact the app developer here --> App Support or WhatsApp FAQ or Restoring your chat history - WhatsApp FAQ