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
Step 1:  Open the  Settings
Step 2:  Tap on  Display
Step 3:  Tap on  Font
Step 4:  Choose desired  Font style
Step 5:  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