Backblaze has a bandwidth alliance with Cloudflare. Leveraging this means you can restore private backup content via Cloudflare, and not pay anything to Backblaze in egress charges!
I’ve not had the need to restore 100’s of Gigabytes, let alone Terabytes’s, but at the point where you need to do this Backblaze charge a fee for each Terabyte restored (egressed). It’s not a huge fee, and probably inconsequential to the need to restore the data, but it can be done for FREE!