Absolutely nothing. (In best case scenarios.) They’re the lowest IQ people in the org, so let’s put them in charge. “Which company do you work for? A major one.”
The incompetence level in the industry has increased. In the past perhaps more people were close to being technical. Now there is a deluge of nontechnical positions and management layers that contribute nothing. This increases cynicism.
One very concise answer is market for Byju's paid online education is about 2 order of magnitude smaller than projected to investors.
It is for simple reason that paying capacity of average Indian customers is much lower than west and ton of cheaper options are already available for this kind of thing.
Detailed reasons are of course bad management, underhanded sales tactics, burnout, online vs classroom education, scaling too fast etc..etc.
Very few people can afford it, and those who can afford want more, e.g. Q&A, graded assignments etc. It's almost never a "record these once and we are done" thing.