Population caps out at 10b and begins to decline again around 2100. That's the current projections.
Plenty of events, like the pandemic, which put immense downward pressure on fertility.
Also, the African continent is a net food importer. This could be turned around - particularly by Nigeria, which has the natural resources to produce fertiliser, but so far the observed effect has been a surge (+65%) of imports.
With the situation in Ukraine being what it is, I don't think this is sustainable.
Niger is currently experiencing a population explosion, which will force it to implement the same policies as Kenya to prevent a Malthusian catastrophe.