All staking activities are processed on the blockchain. Just like any other blockchain transaction, these operations require computational resources to verify and record on the network, which incurs a transaction fee. The fee you pay is not determined by the staking platform itself, but rather by the blockchain network where the staking takes place.
The amount of the fee can vary depending on several factors, including the volume of Fan Tokens being staked, unstaked, or claimed, as well as the current network congestion. Larger or more complex transactions may require higher fees to ensure timely processing.