How should I play the caro kann exchange variation (as black)

Here is a Fischer game
https://www.chessgames.com/perl/chessgame?gid=1044326
A recurring thema are the good bishops Bf1, Bf8 not on the color of their own pawns d4, d5 and the bad bishops Bc1, Bc8 on the color of their own pawns d4, d5.