When I was using the iPhone 6s I used Air Transfer to move files from the phone to my PC.
That worked as well as anything can with an iOS device.
When I moved to the Essential I resumed using Bluetooth to move files from the phone to the PC. But Bluetooth isn't as fast as Wi-Fi.
I liked the way that Air Transfer set up a web server on the phone that you browsed to from your PC. I searched the Google Play Store for something similar.
I ended up with Sweech. The free version works fine.
It works similar to Air Transfer but transfers in BOTH directions.
When you browse to the Sweech web server you can drag and drop files from your PC onto the web page and Sweech will transfer the files to the phone.