Brakes

Hey y'all, looking at buying a used EQS AMG from 2023. I've read that some of the negative feedback on the car is the braking performance with steel and carbon ceramic brakes.

I have also read that in 2024 they updated either breaking software or new physical components but is unclear which it is.

First question is how bad are the brakes really? I know it's a heavy car but it does go fast and second question is was the breaking update software only or is it a new mechanical part that's truly only for 2024s? If it's software would be nice to know if it was applied for all previous models, not just 2024.

Thanks in advance !