For object storage that I play with, some clients are in the cloud, with most sitting at home behind residential internet.
They can do this because it costs almost nothing to move data between B2 and Cloudflare, and then from Cloudflare to almost anywhere. Moving data from B2 to most other places on the internet likely costs them more because Backblaze isn't in a position to negotiate adventagous peering agreements with ISPs.
I'm poking around at the Cloudflare website, what's the name of the aforementioned service? What term should I google?
I'm ignorant of "modern Cloudflare" -- other than reading their fantastic technical blog, I've never used them in a professional capacity and don't know their product offering -- other than a cache, CDN, DDOS protection, and a Lambda.
As far as I recall it's not a service or even any setting you have to set up, just a sort of policy.