Do you have to pay a transaction fee?

Excuse me, could you please clarify if there's a transaction fee involved in this process? I understand that some platforms charge a small fee for processing transactions, and I'm wondering if that's the case here. Is there a specific amount that needs to be paid, or does it vary depending on the amount being transacted? Additionally, is there any way to minimize or avoid these fees altogether? I'd appreciate any insights you could provide on this matter.