Cloud Storage

With WD Discovery software I have downloaded my files from google drive as well as one drive successfully. Are these files going to stay on my external drive permenantly? If the drive is disconnected from my online cloud accounts or if those accounts are deleted or files are removed are they somehow connected to my clouds online? Will it sync as files are changed or removed in my online cloud storage or is it basically a separate backup of all of my files currently stored on the cloud permanently stored on the drive? Thanks so much in advance for any responses and help with this matter.