Or you can just say his name is I Am or Jealous. Per the story, He says "I am who I am" and then "Tell them I Am sent you" when He spoke to Moses and that was turned to the YHVH, and extrapolated out to Yahweh or Jehovah, depending on what you like. Like, if the name doesn't translate to "I Am" then why use it?
Later when speaking at length, depending on translation, God also says (in third person) "Don't worship other gods, but the Lord, whose name is Jealous (or called Jealous) and is a jealous god."
Which honestly is more a realistic naming, the I Am name sounds goofy.
But, seriously though? How could the devil be worshipped "in place" of God? You're stating that your all powerful, all knowing god is somehow deprived of a worshipper who devotes their life to him, praises him, prays to him, and does his best to life life according God's commandments... because of a translation futz up? Because the (let's pretend) 20% of the time the person refers to God as Yahweh and not God, God the Father, God Almighty, Jesus, or any other name? That'd be enough to send the person to hell? Heck, his name would have to be Petty in that case, being a super petty pisaant of a deity.
And, for the flat Earth nonsense, if the god you worship is reliant on actively going against observable reality, seems like you have the false god.