A screenshot doesn't live on IPFS forever. IPFS has garbage collection, if content is not requested from any peers, the peers will drop the content after some

A screenshot doesn't live on IPFS forever. IPFS has garbage collection, if content is not requested from any peers, the peers will drop the content after some time. So your screenshot will probably live a couple hours or days but not forever, that's not what IPFS does. Other projects like Filecoin, Storj or Swarm are actually for long-term secure storage but you also pay for using that service.