This seems like a nice combination to have free cloud storage with free CDN and a compatible S3 api for the recent connector.
Backblaze B2 free tier includes:
“Free first 10 GB of storage, free 1 GB of daily downloads”
Cloudflare free tier includes Global CDN and DDOS mitigation services.
Here a guide to set up both.
Perfect for personal and throw and see what sticks projects.
Bonus points: Use Heroku for free cloud hosting.