Short version - Is there a hardcoded or practical limit to the number of files we can backup with Cloudberry Ultimate?

Longer version-
We have been using Cloudberry to copy our server backups (VEEAM) to Backblaze B2 for a while now. It has been working great.

Now we are testing another instance of Cloudberry to copy desktop/laptop backups to B2.
We have a central server that holds end user desktop/laptop backups(Symantec/Veritas DLO). The folders on this server contain millions of files and total storage of about 15 TB and will only grow over time.

Is this an unreasonable number of files to manage with Cloudberry Ultimate? Are there any hardcoded or practical limits to the number of files we can copy? Is there a "best practice" to sizing this for Cloudberry Ultimate?

The reason I ask - we are using the trial version to make sure it will work. Our trial ends tomorrow and we are maybe half way through. Our bandwidth is not an issue. We have a 1Gbps internet connection and have not been maxing it out.

I don't want to purchase only to find out it won't work with this much data.

Thanks!