Glad to have you here in the Community, @marnphill4-gmail.
Currently, Venmo is not integrated with QuickBooks Online (QBO). Though, you can create an invoice and then request the total amount from the customer from the payment channels.
Here is a link with more detailed information about adding or modifying payment types: Add or edit payment types
I've added this article to give you more details on how to link your invoice and deposit: How to link a deposit to an invoice.
I'd also recommend you regularly check our QuickBooks Blog for the latest feature available in QBO.
If there's anything else that I can help you with, let me know. It'd be my pleasure to assist you.