I have two whatsapp in my phone, 1 is business account for my work and another normal whatsapp for my personal conservation.
Consider I am showing some work related photos to one of my client though my phone in my business account,
If someone consider my girlfriend texted me in my personal watsapp it will pop-up in notification, there is 100 percent chance client will read that message
If I have the restriction option
I will restrict internet use of my personal watsapp account then I Will show photos in my phone itself
I don’t need it shady apps
I need it for privacy
Earlier Vivo phone had it