Top Bantu Languages

The numbers on this don’t bear any resemblance to the numbers given on your source page. It says on that page that Swahili has 12 million native speakers (some would argue it’s not actually a Bantu language because it is a blend of Bantu, Arabic and Portuguese, with about 40% of its vocabulary being taken from Arabic).

There are 25:-30 million L1 Lingala speakers and at least 5.6 million Sesotho speakers (not including speakers of Northern Sotho). Your figure for Tsonga also looks to be about 2 million too many, while your figure of Luhya is nearly 10 million to low.