On all review, Buds Pro, has much better sound quality. Are these reviews are updated on sound quality? https://www.rtings.com/headphones/reviews/samsung/galaxy-buds-plus-truly-wireless https://www.rtings.com/headphones/reviews/samsung/galaxy-buds-pro-truly-wireless
As far as we know, the ending of the model number can change slightly to differentiate regional models. In this case, we expect them to perform the same, although there may be slight region specific differences (like a different tuner). But again, performance wise, they should be the same! :)