That will depends on his usage and settings, cos usually task killers comes in if the phone has a lot of apps opened in the background while leaving unused and untouched in a lock screen and off screen state. For such situation lock the app so the easiest.
But for a person who only use the WhatsApp app and very few ie no other apps open in the background or a person (like myself) who is addicted to one handphone and keep touching it and waking it we seldom will encounter such issues.
But for a person who only use the WhatsApp app and very few ie no other apps open in the background or a person (like myself) who is addicted to one handphone and keep touching it and waking it we seldom will encounter such issues.
My WhatsApp is working properly on k30 pro.I didn't even need to lock app. I only enable auto start. What's your play store version and device certified?
Sent from Xiaomi MI 9 using GAGT