Several ways to transfer files between phone and PC using ES File Explorer.
Microsoft Phone Companion
Your Phone Companion is an Android app to link your phone to Windows PC to get instant access to your phone’s notifications, texts, and photos and everything you love on your phone, right on your PC.
LG phone to computer screen mirroring
LG phone to computer screen free mirroring solution: How to mirror your Android mobile phone screen to PC or Mac?
Turn your LG phone into WiFi hotspot
How to enable WiFi hotspot on LG mobile phone to share cellular data or internet connection, or share files with other devices?
ApowerMirror
ApowerMirror for Android is a mirror and control app mirror Android phone screen to PC and Mac, control Android devices on the computer using mouse and keyboard.