Federal reserve (Kansas) says in ‘25 these transactions were about $390B (there are qild estimates of $35T but these seem to be typos or deliberate misreadings of a prediction for 2035 from a crypto enthusiast). At forex scale or the scale of global GDP, 400B is invisible.

It could grow, of course, though the use case appears to be weak and unstable countries, which are by definition distant participants of global exchange, and unlikely to have any visible effect on the overall macro economy.