I'd love a 3rd party Messenger client.
I absolutely despise their app. It isn't even an IM client anymore - there are tons of irrelevant features that make it hard to use, e.g. the Games tab, the tab with bots and the Days.
And for the love of whatever, please let me use my phone's camera app.
Before you try to prove me wrong - are you sure you didn't just get used to it? Because I don't like to get used to stuff I don't like.