Is it healthy to split kids 50/50?

I would like to know your opinion on sharing custody time equally, specifically a 7-7 or 15-15 split. Currently, my ex has most of the time with our child, and I only have weekends, which feel more like fun time rather than quality parenting. I really miss being a dad, and I feel that having just two days a week is not enough for me. However, I'm concerned about the impact on my son if we split his time between two different homes each week. It doesn’t seem healthy, but I'm unsure about the best approach.