Look under Other Devices or Network Adapters . It might show up as "802.11n WLAN" with a yellow warning icon.
Most LB Link 802.11n adapters work immediately with kernels 5.0+. If not: lb link wireless usb adapter 802.11n driver download
Good news: Most 802.11n LB Link adapters use open-source supported chipsets (Ralink RT2800/RT3070 or Realtek RTL8192/8188). Look under Other Devices or Network Adapters