How was the order of accession to the throne of a new monarch in Germany

How was the order of accession to the throne of a new monarch in Germany different from the order of accession to the throne in France and England?

The king in Germany was elected by the electors, that is, the rise to power of the king was carried out by elections, the participants of which were German princes. At the same time, in England and France, kings inherited the throne from their father. The king was dying, and therefore his eldest son took over his post. The succession to the throne often became the cause of feudal wars. Since, if the heir died, then a war began between the ruling dynasties. Or, for example, between the brothers after the death of their father, there was a struggle for the throne.