[Lurking Libertarian]

Baal, a name for God. Baal eventually morphed into a separate entity like Allah

I don't think there is a single place in the Hebrew Bible where God (i.e., the One True God) is referred to as "ba'al." On the other hand, there is much evidence that Canaanites were worshiping gods called "Ba'al" long before Joshua led the Israelites into Canaan.

[Verginius Rufus]

I have seen that explanation before for the Ishba'al/Ishbosheth variation--it makes sense after the name Ba'al came to be seen as that of a false god that the redactors of the historical material would want to suppress the -ba'al element.

The Ten Commandments include "Thou shalt have no other gods before me" as if the other gods exist, but Yahweh must be honored and worshipped above the others.

Carthage was a colony of the Phoenician city Tyre--a lot of Carthaginian personal names have the element -bal in them (Hannibal, Hasdrubal, etc.), which is the same as the Hebrew Ba'al.