True free cloud mining does not exist in any profitable sense. Any service offering "free GH/s" is either:
is the process of renting computational power (hash rate) from a remote data center to mine cryptocurrency. Instead of buying expensive ASIC hardware or managing cooling systems, you pay a service provider to do the work for you.
Stop paying for electricity and start using the cloud! 🌩️ I found a list of platforms giving away free GHS just for signing up. Perfect for beginners who want to see how mining works without the risk.