My TL;DR; for git commits is that these are connected like a linked list but in reverse and has more pointers than just head/tail. I recommend having a look at

My TL;DR; for git commits is that these are connected like a linked list but in reverse and has more pointers than just head/tail. I recommend having a look at Merkle trees. I don't understand git cli, but I can manipulate git commits, branches, tags etc well based on basic understanding using a good git UI.