Big companies have been overpaying developers for almost a decade now. It is not going away. It is not some short term thing. Instead, that is what these elite tech companies pay.
It is not some singular company, that is buying up all of the tech talent. Instead, it is a whole bunch of elite tech companies, paying lots of developers lots of money.
The idea that there is one singular company, that is a monopoly on developer talent, that is false, given that there are a whole bunch of them doing it.