The font can be changed on the LG device. For this purpose, the LG SmartWorld app offers free and paid fonts for download. In addition, several fonts are already available on the LG that can be used without downloading:

Android 9 | LG UX 9.0
Font Style -  Open the  Settings
Font Style -  Tap on  Display
Font Style -  Tap on  Font
Font Style -  Choose desired  Font style
Font Style -  Confirm with  Apply
  1. Open the Settings
  2. Tap on Display
  3. Tap on Font
  4. Choose desired Font style
  5. Confirm with Apply

LG Instructions