I think this is a terminological confusion. The original Gospel as in the life and teaching of Jesus, that got lost as it wasn’t documented in his lifetime.
The four gospels that made the choice are as you said collections written later. And there were many more Gospels that the early church decided not to put into the bible. On top of that there is the issue how those gospels got translated multiple times and each translation inadvertently adds a layer of interpretation.
I think this is a terminological confusion. The original Gospel as in the life and teaching of Jesus, that got lost as it wasn’t documented in his lifetime.
The four gospels that made the choice are as you said collections written later. And there were many more Gospels that the early church decided not to put into the bible. On top of that there is the issue how those gospels got translated multiple times and each translation inadvertently adds a layer of interpretation.
Ah, okay. But then we can’t really make a claim either way, can we? We don’t really know who he was or who he claimed to be.