That's not true at all. Random data point. Estonia. I have a _single_ contact that uses WhatsApp. Everybody else is reachable via FB Messenger/Discord/SMS/Signal/Google Chat/Instagram.
China is always an exception,but they are locked partially out of the whole internet
There is a rumor when both companies tried to enter the Indian market: Whatsapp won.
WeChat assumes there is good reception and fast data transfer anywhere so there is no need to compress pictures and videos.
Whatsapp could be passed as Android APK between phones. And it resizes and recompresses every picture you send.
So thats my guess why WhatsApp won 1/6 of the planets pooulation in India.
That's not true at all. Random data point. Estonia. I have a _single_ contact that uses WhatsApp. Everybody else is reachable via FB Messenger/Discord/SMS/Signal/Google Chat/Instagram.