Bottle design and labels are usually marketing concerns and can be influenced by regional requirements and preferences. The major U.S. additive package manufacturers have multiple domestic and European manufacturing locations. They can produce a package across locations without problem. My point is the two oils the OP specifies may use the same adpack in approved local base fluids.
In the past I worked for a company that manufactured motor oil based on an additive package made in the U.S. and France. They were interchangeable. We manufactured motor oil from this package in the U.S., Germany and Spain for the domestic, LATAM, European and Asian markets.
In the past I worked for a company that manufactured motor oil based on an additive package made in the U.S. and France. They were interchangeable. We manufactured motor oil from this package in the U.S., Germany and Spain for the domestic, LATAM, European and Asian markets.