Infinite Wealth was deffo a bigger map and set thereof then its predecessors (Like a Dragon was also substantially larger, as was Lost Judgment in comparison to its predecessor), but it did absolute numbers, so I dunno about that.
I think it comes down more to if it feels appropriately sized and filled. Prior Yakuzas were bursting at the seems with shit to do everywhere in their smaller maps. Breath of the Wild had new and interesting shit going on everywhere too.
If only there was some sort of stopping a 2 year long failed invasion based plan that could resolve this.