There are two sources of staking rewards from staking on the Ethereum network.
The first comes from the consensus layer of the network, where your validator will vote upon and help decide the current head block of the Ethereum blockchain. These rewards are made directly to your validator by the network throughout the day.
The second source of rewards comes from the execution layer of the network. As part of the staking protocol the network will randomly select validators to propose blocks. If your validator is randomly selected, any rewards that arise from proposing the block will be paid directly to an Ethereum address you nominate. These execution layer rewards are available for you to use as soon as they are paid.
As Attestant is non-custodial, all staking rewards (consensus and execution) are paid directly by the network to addresses you control.