Of course. The value of having a messaging app that nobody else uses is very limited. Most people will roll their eyes every time some sports club, parents ascosiation, knitting circle, wathever will want you to install another niche app. It is a winner take all due to inherent network effects.

You can also predict that wathever emerges will be based on direct or indirect add revenue, and require massive sustained investment for years, thus making it again most likely to be US petrodollar backed, or, if not, petrodollar bought or else just brought to heel or extinguished.