What is the 2.99 fee on Venmo?

Excuse me, I've been noticing a 2.99 fee on Venmo transactions and I'm a bit confused about it. Could you please clarify what this fee represents? Is it a flat rate for all transactions, or does it vary based on the amount being sent? Additionally, are there any ways to avoid or minimize this fee? I'm interested in understanding the specifics of this charge and how it affects my overall use of Venmo for financial transactions. Thank you for your time and assistance in clarifying this matter.