Modern freelancers, agency contractors, and remote employees rarely have just one Google account. You might have a personal Gmail, a corporate Workspace account, and separate accounts provided by two different client agencies. Google Drive for Desktop officially allows only four accounts to be connected at once, and switching between them in web browsers frequently leads to permission errors.
The most efficient way to manage 5 or more Google Drive accounts simultaneously is combining isolated Chrome/Brave browser profiles for web access with headless rclone virtual drive mounts for local filesystem access. Each account mounts as its own distinct virtual drive letter (G:, H:, I:, J:), completely eliminating account switching friction.