Linux: The 8188GU chip is generally supported in the Linux kernel, but some distributions require manual compilation of the driver from GitHub (specifically the "rtl8188gu" repository).
Use the built-in Mobile Hotspot feature (Settings → Network & Internet → Mobile Hotspot). Note that Windows may disable the adapter if it doesn't support hosted network (check with netsh wlan show drivers ). realtek 8188gu wireless lan 802.11n usb driver