Yeah, these new micro and compact pistols with 10, 12, and 15 round capacities are no larger than the single stacks.Comfort and printing. Round count (and everything I suppose) is personal preference. As a bigger guy, having a thinner profile would be more comfortable, therefor more likely to consistently carry it.
In 2018 Sig Sauer figured out a way to accomplish a larger capacity without increasing dimensions with their P365 series and they crushed the market... and everybody else has been copying them the past couple of years.