Instead of using over-the-air methods for transferring your files which may be insecure, I have installed Jumpdrive on my phone.
If you are using a Librem laptop:
All you need to do is boot your phone into jump drive and connect via USB to your laptop and you will have access to the files on your phone after answering the password prompt for your phone.
For me this is a more secure method and easier as far as I’m concerned.
Also I have been using a USB a to USB c connector which I bought off of Amazon called JSAUX which comes in various lengths and is more flexible and easy to use than the purism supplied cable.
