Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
In the past, the dock bar has been just an appearance enhancer in operating systems. People have been led to believe that the dock is for those who are more conscious about appearance rather than performance and because of this, they quickly lost interest in it once they got used to it.
In truth, the dock bar can provide you more if you want it to. There are a lot of Dock bar applications available that do just that.