If not retiring before 59.5, should I still keep contributing a lot to my taxable brokerage account (after maxing out all the tax-advantaged accounts & the emergency fund)?

If not retiring before 59.5, should I still keep contributing a lot to my taxable brokerage account (after maxing out all the tax-advantaged accounts & the emergency fund)? What if it grows to a lot? Can that hurt me in any way? To phrase it differently, does putting a ton into your taxable brokerage account a good idea if you are not retiring before 59.5? (I feel like this might be a dumb question but I started learning about investing early December 2025 so still fairly new to this world.)