If the steaming/broadcasting material is not hosted here, you should be fine. Just using IF to redirect a URL should be OK.
The best way to do this would be to buy a custom domain name and point its nameservers to Cloudflare, then use Cloudflare to set the CNAME record. That way, the streaming site won’t have a direct affiliation with InfinityFree. (And you can still use the domain name here).
That’s really good! Props to you