I think this is wrong. Each region had its own deity, traditions and methodology. Saying that Allah and YHVH the “Father” of Jesus are one and the same is, in my opinion, a mistake. Here is why :
EL is the name of supreme god of the ancient Canaanite religion. Also called “The Father” of all Gods, because he had many sons and daughters.
The God EL is the God of Judaism and Christianity. (( He is “The Father” God of Jesus, BECAUSE he is YHVH. )) Which means the creator. YHVH ELOHIM means the creator of ELOHIM. Remember EL had many sons and daughters so he is called the creator of those ELOHIM Gods. That’s what makes him special or superior.
This is very important point to keep in mind. The reason why EL is the supreme God and the reason why he is called THE FATHER. Is because - like any father - he creates more of his kind. More Gods and Goddesses. ( And for that, naturally, he had a wife. Many actually ) Google “Yahweh and his Asherah”.
This concept or idea ( The supreme God who creates Gods ) doesn’t exist in Islam. But the opposite. Allah is never called “The father”. And he doesn’t create Gods and Goddesses. He is the ONE AND ONLY GOD. Who creates everything in existence.
But in Islam you still going to find the word EL, the name of the Canaanite God in the names of Angels. For example, MICHA-EL. Which is a very strange thing since EL is never used anywhere in the Quran. The names of the Angels are simply copied from Judaism and Christianity And because Judaism and Chrstianity are religions of the Canaanite God EL, you will find his name everywhere with all his titles in the bible. That doesn’t exist in Islam and can not be found in the Quran. El is never mentioned, the father God is never mentioned, YHVH ELOHIM the creator of Gods is nowhere Islam… but the ones who created that religion had no idea how the names of Angels are formed. So they just copied them because they needed Angels to exist as part of the methodology of Allah. Because Mohamed introduced himself as a messenger of the same God of Israel. Which can not be true.
The word Allah can be found in Arabian manuscripts predated Islam and used by Arabian Christians to describe God. Because it was the most common name for the most high deity. Mohamed’s father was called Abdu-Allah meaning, the slave of Allah. For Christians it’s exactly like saying “God” in English language today to describe The father of Jesus, they didn’t mean a specific deity who was worshiped by Arabs. But Arabian Jews never used that name.
Some people argue that EL and AL are the same. Therefore, ELAH is the same as ALAH or ALLAH. Possible, but even if that is true. The two deities are different in everything. The Canaanite God EL is not the Arabian God Allah.
All religions had a concept of a supreme God. The invisible one, the father of all Gods. In Ancient Canaan, Babylon, Egypt and almost everywhere in the middle east and all around the whole word. ( the Greek God Zeus for example ) So it’s not a surprise to see that concept in ancient Arabia. That doesn’t mean they are all one and the same deity. Maybe they are one and the same Archetype, the same concept or idea of an invisible supreme God. But each version of that Archetype is not the same.