Just a thought.
They already made Lite versions of Facebook and Instagram.
And a lot of the new functions (stories, screen share, and the avatar emojis) only come as bloat for users like me.
So i think they should make an official app that came without those “features”, having a priority on simplicity and data saving.
They discontinued the messager Lite not that long ago so I seriously doubt that will ever happen, luckily I don’t use Whatsapp I guess but most people sadly more or less have to!