It is a long long story.
https://www.head-fi.org/threads/why-balanced-headphone-amps.539458/
Basically, some people hear Balanced to be better, and use it as often as possible, there are agnostics or skeptics, and there are people who don't want Balanced.
Some DAPs and AMPs have a better AMP stage for the Balanced part, while others sound the same, it is very very complex of a subject. You want to have the option if it is possible, just for the peace of mind. I don't know for sure yet, no real opinion on this, I will use whatever is simpler, I barely have any Balanced cables since most of my equipment is SE.