If there are multiple pages on the LG's home screen, you can set one of them as the default page, and when you start the device or press the Home button, the page set as the default is displayed.

Android 9 | LG UX 9.0
Set Default Panel -  Tap and hold a free area on the  home screen
Set Default Panel -  Go to the desired  home screen
Set Default Panel -  Tap on  Set Default
  1. Tap and hold a free area on the home screen
  2. Go to the desired home screen
  3. Tap on Set Default

LG Instructions
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