Open source Duplicati allows you to set your own encryption and compression before efficiently backing up to many remote services. But good candidate targets too are a second drive, or even FTP to a remote computer on the network.
But with Google not offering a native Linux Google Drive sync or backup, maybe using Duplicati is actually a more secure way of achieving this.
See
https://www.addictivetips.com/ubuntu-linux-tips/how-to-back-up-directly-to-google-drive-on-linux/#
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Duplicati 
