The common ancestor basically tells us who we are related to more, but does not tell you when they branched out. So we are more closely related to fungus than to almonds, and that is what we learn from the tree of life. But the common ancestor of plants was born after the common ancestor of fungus.
In Human analogy you could think of it like that cousin uncle (non native speaker, so don't know what if that is the right term) who was born after you, but in the family tree will be shown before you.
Edit: Googled a bit. I have a first cousin once removed, who was born after me (referred to as cousin uncle above)
I thought: "how bad can it be?" but that really is a rabbithole of almost limitless depth. It really drives home just how many species there are that we have no pictures of. And how far you have to zoom in to find anything you can recognize.
In Human analogy you could think of it like that cousin uncle (non native speaker, so don't know what if that is the right term) who was born after you, but in the family tree will be shown before you.
Edit: Googled a bit. I have a first cousin once removed, who was born after me (referred to as cousin uncle above)
Edit2: https://labs.minutelabs.io/Tree-of-Life-Explorer/#/?ids=ott7... Minute Earth tree of life explorer makes it easy to see this, but beware many hours can be lost down this rabbit hole.