When people are using a modified version of any app their first concern is the safety of data. If the app developers provide a guarantee of privacy of data then you can use the app. User safety depends upon the legality of the app.
Now the question arises is the modified version of WhatsApp that we are calling GB WhatsApp safe to use? As we know GB WhatsApp Pro and all other WhatsApp Mods are developed by third-party developers.
The developers are the ones who have obtained source codes of WhatsApp official and then develop a scripted version of it with some modifications. These modifications include enhanced features, themes, and customization options given to the user.
Around every year user accounts are banned by Meta ( Facebook ) due to the use of a modified version of the app. Sometimes they ban the account of users temporarily because they want to maintain the security and integrity of the app. They want users to use official and original versions of the app.
This is the only sole reason you don’t find any mod app on the google play store. Google Play is very strict in this it forbids the use of altered copies of the original version of any app. They want to ensure the rights of original developers which will be violated by GB WhatsApp and other WhatsApp modded versions.
So the main problem while using these apps is getting banned. If you want to use the mod version of GB WhatsApp apk use it with that account that is not useful to you. In case an account is banned by the original WhatsApp then there is no worry for you. An account can be created by the user for the use of enhanced features.
It totally depends on the user which version they want to use. User priority and safety matter the most.