I am using Cryptomator with Google Drive syncing between my Windows 10 desktop and Android device. From the Windows desktop, I put an rtf file in the Google Drive vault. Then I went to the Android device, unlocked the vault, and edited the rtf file.
What seems to be happening is that when I edit a vault doc with Google Docs writer, it makes a copy of the rtf document and saves the edited document in a folder outside the vault. When I lock/close the vault, the copied file remains and can be opened and edited in the Docs app. If I reopen the vault and edit again, the Docs apps creates a second copy, and so on.
My intention is to use Cryptomator to unlock/open files only when I am using them so that they can’t be viewed or opened at other times by other apps on the device. Google apps stay logged in all the time, and I hoped to use Cryptomator limit device access to sensitive files. Is that the way it is supposed to work?