Convenience, "it's there". Tons of people use youtube to listen to music even though there's dedicated music apps. Loads more people consume Reddit via computer voices reading them out on Tiktok while a random recording of a GTA race or Subway Surfers plays. Others watch Tiktok videos on Reddit.
I don't have an answer, but I'm fine with not understanding. Let people have things for their own reasons.
Tons of people use youtube to listen to music even though there's dedicated music apps.
I do that too, like a radio, but I recognise that music is far more "contentful" (for lack of a better word) than white noise variants, the latter of which can easily be generated locally on-demand for as long as you want.
The thing that powers one of the most popular work chat apps and one of the most popular code editors?
The thing that reduces context switching for developers? The thing that has increased the number of apps that would have been websites during the dark times?
I don't have an answer, but I'm fine with not understanding. Let people have things for their own reasons.