With Cloudflare R2, this will cost roughly $16. With upcloud, this will cost roughly $10,000.
You see how this can easily be the difference between a business being viable and... not?
Though I agree that neither ovh nor upcloud have an offer tailored to that use (I think in that case using a CDN instead may be the more adapted). That offer may or may not exist on the EU market but I'm too lazy to search for it
On a sidenote, I didn't know about r2, thanks for the tip
The closest you can get is renting servers with unmetered 1-10gbit connections and serving it yourself, but because you don't have the economy of scale that Cloudflare does, it will still be much more expensive than R2. You can't balance out your costs against those of hundreds of other customers that don't serve as much data, or against customers serving data at different times where your unmetered bandwidth would be wasted.
Starting up a service with pricing like R2 is only really possible at Cloudflare scale too, so it's not like it's possible for someone like us to see this gap in the market and... fix it?