Is my WhatsApp Chat will be back up as well?

1. Launch WhatsApp from your Home screen.
2. Tap on Settings. ... 
3. Tap the Chats button.
4. Tap on Chat backup.
5. Tap Back Up Now to upload your chat data to your iCloud storage. ... 
6. Tap Auto Backup.
7. Tap the backup frequency you'd prefer. ... 
8. Tap Chat Backup to go back to the last Settings menu.

Make sure you're signed in with your Apple ID and iCloud Drive switch is on

here's how to confirm it

Go to settings>> [yourname]>> swipe down and select iCloud, swipe down and look for iCloud Drive and switch it to green

Ayuni2 wrote:

I want to format my phone so I want to back up my WhatsApp chat first but I don’t know how. Can anyone please help me?

About backups for iOS devices

https://support.apple.com/en-us/HT204136

What does iCloud back up?

https://support.apple.com/en-us/HT207428

reset http://support.apple.com/kb/HT1430

restore from backup, restore as new device. http://support.apple.com/kb/HT1414

No, it was because your response is not correct. As I said, WhatsApp is not an App developed by Apple but it uses iCloud Drive to load customers back up, if you disable iCloud Drive switch you won't be able to recover your chats

The response is correct, it's not an Apple product. Period.

And this forum is about Apple product and services and not for millions of 3rd parties apps.

Support for 3rd parties apps are the app developer responsibility on the forum/website.

NOTE: The forum is called Using iPhone.

WhatsApp is not an Apple product.

Best you ask the app developer on their website/forum.

WhatsApp is not an apple product but it loads back up to iCloud Drive and customers need to know how it works.

FYI: If you want to help someone by all means and tell OP what to do.

Not me.

Seems like you are not able to catch my point so I'm not dealing with you anymore.

Cheers!

What's the point telling me?

Are you working for WhatsApp?

There's no point in your post to catch.