You are quite correct that an asymetrical game is much harder to balance.
However having identical sides and a symmetric playing field doesn’t always guarantee a balanced game. For example, if one piece or position dominates all others it can lead to a lack of viable options and just one way to play, making the game uninteresting. You don’t just want the players to have equal strength, you also want the universe of possible playing strategies to contain many different strong options.
You are quite correct that an asymetrical game is much harder to balance.
However having identical sides and a symmetric playing field doesn’t always guarantee a balanced game. For example, if one piece or position dominates all others it can lead to a lack of viable options and just one way to play, making the game uninteresting. You don’t just want the players to have equal strength, you also want the universe of possible playing strategies to contain many different strong options.
Also, in that case having first move advantage would be seen as unbalanced.
Queen OP, pls fix.