Thanks for your time and your answer , but that doesn't work when in the locations (root level) of the files app when I press edit it gives me the option to move the PMHOME folder which was abandoned by the Sony camera, but no option to remove this abandoned folder . When in the folder I have the option from the top right to delete, once those files are deleted the PMHOME folder in locations still remains. The other usb folder which was created when the camera was attached is removed when the camera is disconnected , but the PMHOME folder is left on the phone and a new PMHOME is created each time the camera is connected to the files app .
It would be nice to have an option to Eject these folders before the camera was disconnected!
The ability to view my raw files from my camera is a fantastic new feature, which as a photographer I would use several times a day, but I won't use it if I have hundreds of PMHOME folders left on my phone. This might be specific to Sony cameras!