(Simplifying:) Fees are set by law and derived from the value/damages they’re suing over (Streitwert). The winner can recover the costs up to that fee. However,

(Simplifying:) Fees are set by law and derived from the value/damages they’re suing over (Streitwert). The winner can recover the costs up to that fee. However, attorneys can charge more, that difference is on the party that hired the attorney.