The same thing that happens when wired ISPs oversubscribe their infrastructure. Users get less than than theoretical maximum speed. Wireless infrastructure do

The same thing that happens when wired ISPs oversubscribe their infrastructure. Users get less than than theoretical maximum speed. Wireless infrastructure doesn’t inherently have this problem and wired infrastructure doesn’t inherently solve it. The bigger problem with wireless internet access is probably geographical constraints where neighboring sites can have drastically different quality depending on what is between them and the closest tower.