No, I have never upgraded the wi-fi adapter or wired networking adapter or PCI card on my computers because my Internet Connection max speed is around 15 Mbps download, and 5 Mbps upload, so I would never reach the maximum speed limit of my wifi or wired network adapter when using my home internet connection.
My home is also not big, so my built-in wifi card on my laptops are good enough at getting a good wifi signal from my wifi router.
My home is also not big, so my built-in wifi card on my laptops are good enough at getting a good wifi signal from my wifi router.