The secure shell, ssh, and its companion, scp, are tools that I use more or less on a daily basis. Being able to move files between machines without having to setup SAMBA or NFS is very handy when ...
When I move files from my phone to my PC, I use Nearby Share. For PC-to-PC transfers, I rely on Windows network sharing. Both work well over a local network and save me from dealing with cables. But ...
You don't need to upload files to the cloud just to access them on your other devices.