What is the FET transfer?

Could you please explain what exactly is the FET transfer? I've heard it mentioned in some cryptocurrency circles but am not entirely clear on its specific details. Could you break it down for me? What does it involve? Is it a type of transaction? If so, what are the steps involved in completing a FET transfer? Also, is there any particular platform or wallet required for this process? And finally, how does the FET transfer differ from other types of crypto transactions? I'd really appreciate a clear and concise explanation. Thank you in advance for your help!