Can't view HOSTS file

For some reason (other than being owned by root) I cannot see my phone’s HOSTS file from a USB connection using MTP to my Linux box. I can copy the file with the phone’s file manager to the different SD cards but am at a loss as to how to be able to move it to the PC for manipulation and then transfer it back to the phone. I’m trying to work with stopping Adverts and the like on the phone.

On 13.1 KDE. Thanks!