I am happy I stumbled upon your channel as I am a new succulent plant mom. My guesses for the "Who Am I?" is either Lithops or Pleiospilos nelii. The photo reminds me of both of them.
Hi! Welcome to the channel! I'm glad you enjoy the content :) You're super close, they are actually Conophytum or more commonly known as Cone Plant. They are very similar to Lithops as they come from the same family. Lithops tend to be a more solitary kind, the Cone plant usually will form clusters and once it grows it takes a cone shape. Let me know if there is anything you would like to see in the channel! Happy gardening :)