When you serve video from R2, you do it directly from R2 to client, not with an additional Cloudflare CDN in front, and that works fine? I have been trying to understand video and R2.
You can serve the video through the CDN, Cloudflare allows it though it must be under 512mb to cacheable (so split the video). I had read in a use case that someone with over 25tb of bandwidth in a month of like 300gb disk of video was sent a letter by Cloudflare to disable CDN/caching, so I think this would be fine.
Im still learning the whole thing myself and plan to play with it this weekend and use it for a client site. Feel free to ping me again somehow in the future to see how it turned out.
