I am using several cloud services (including google) as backup locations for several vaults. Some of them bigger than 100gb. Some of them with files on demand feature (eg google file stream) Never lost a file to corruption so far.
nevertheless it’s important to have a solid backup strategy to mitigate the risk of corruption or unwanted file manipulation spreading in all of your backups.
This means that you should have at least 1 backup storage that keeps a history of your files. So you can go back to an older version of your files in case the latest one is damaged.
I am using this tool for my backups.