The Terminal Server is not a recommended location for saving your files. At best, Terminal Server is a temporary short-term save location.
Our main recommendation is for users to deploy Google Drive File Stream on their laptops, and set it up to connect to their Terminal Server sessions. Doing so will give users the ability to copy, paste, move, and delete files from Terminal Servers to their bDrive.
Please also note: we recommend saving files every 5-10 minutes, to avoid losing any work. Do not rely on autosave when using the Terminal Servers.
Drive File Stream installation and deployment instructions are found in this Google Support article. This is an administrator-oriented support document, but do skip ahead to Step 5 and begin by choosing from your system (Windows/Mac) dropdown options.