For LG devices, there is unfortunately no function to simply remove an entire folder from the home screen. The folder is then automatically deleted if there is only one app left in the folder. A quick removal, especially for folders with multiple apps, works through the folder's edit function.

After deleting the folder, all apps are reintegrated on the home screen.

Android 9 | LG UX 9.0
Remove folder -  Open desired  Folder
Remove folder -  Tap on  Manage
Remove folder -  Unselect all  apps
Remove folder -  Confirm with  Done
  1. Open desired Folder
  2. Tap on Manage
  3. Unselect all apps
  4. Confirm with Done

LG Instructions