Today we are beginning to gradually roll out the ability to see your Android phone in File Explorer to Windows Insiders with Android phones across all Insider Channels.
With this new experience, you will be able to wirelessly browse through all your folders and files, including media that is on your Android phone. You can open them, copy them to your PC, copy PC files to your phone, rename files, move them, and delete them.
To enable this experience, go to Settings > Bluetooth & devices > Mobile Devices and choose “Manage devices” and allow your PC to access your Android phone. You’ll then be able to see a toggle to show your phone in File Explorer. If you do not see this toggle, that means the experience hasn’t yet rolled out to you yet.