Why does Beijing's new Daxing airport have so few gates? There is a lot of press about the Daxing airport, touting that it will be one of the largest in the world in terms of passenger capacity. The images of the terminal build are indeed beautiful.

But when I look at this image, taken from Wikipedia, there doesn't seem to be a ton of gates:



I couldn't find an authoritative number of how many gates it will have, but this website says it will have about 80. This matches what I see in the image above.

By comparison, Ohare and Hartsfield–Jackson have about 190 gates, JFK 130 gates, Schiphol Airport 165.

Why is this? In the Beijing Capitol Airport right now, there are not enough gates, so when I land there, they have us deplane on the tarmac and take a bus to the terminal. Why didn't they build 200 gates if this is to be the largest airport, by passenger volume, in the world?
Airports aren't built with the envisioned capacity in one go. They are built in stages. Just look at Dubai International for example, they're always expanding the concourses, etc.

For Daxing Airport, I found what looks like a master plan (outline for a project's major elements):


Source: kaskus.co.id

It shows more than one (at least two) main terminal buildings, land area for expansion that is serviced by taxiways and aprons, and even an additional runway to the west. There is also plenty of remote stands, which are appealing (cheaper) to low-cost carriers.