What is the fee for Lido rewards?

Could you please enlighten me on the matter of Lido rewards? I'm quite interested in understanding the specifics of its fee structure. Could you provide a breakdown of the various costs associated with receiving these rewards? Is there a flat fee, or does it vary based on certain factors? Additionally, how frequently are these fees charged, and is there a way to minimize or optimize them? I'd greatly appreciate your insights into this matter as I'm considering participating in the Lido program. Thank you for your time and assistance.