Explanation
The Ensure Funds process works on only the items passed into the Ensure Funds method. This method is a flow core action that verifies that there are enough funds available for each Order Item passed into it, and updates their payment status accordingly. The administrator can passany Order Items into this method, regardless of their status or delivery group. Verified References:https://help.salesforce.com/s/articleView?id=sf.flow_ref_elements_om_actions_ensure_funds_async

Three advantages of using Flow Builder vs writing Apex code to manage the main flow of Order data are:
The admin can attach a debugger to live customer sessions. This allows the admin to monitor and troubleshoot the flow execution in real time, without affecting the customer experience or data integrity.
The admin can easily debug specific business cases visually. This allows the admin to test the flow with different input values and see how the flow behaves in a graphical interface, without writing any code.
Because it is visual it is also self-documenting as changes are made. This allows the admin to easily understand and maintain the flow logic, as well as track the changes and versions of the flow.
Verified Reference: https://help.salesforce.com/s/articleView?id=sf.flow_builder_debug.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.flow_builder.htm&type=5

The best way for the administrator to satisfy this requirement is to edit the Lightning Record Page and change the Template to Three Regions. A Lightning Record Page is a type of page that displays details and related information about a specific record in Lightning Experience or Salesforce mobile app. A Lightning Record Page can be customized using the Lightning App Builder, which is a tool that allows administrators to drag and drop components onto a page layout. A Template is a predefined layout that determines how components are arranged on a page. A Three Regions template is a type of template that divides the page into three columns or regions. The administrator can edit the Lightning Record Page for the Order Summary object, and change the Template to Three Regions in the Lightning App Builder. Verified Reference: https://help.salesforce.com/s/articleView?id=sf.lightning_app_builder_customize_lex_pages.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.lightning_app_builder_templates.htm&type=5

A service agent should go first to the Order Summary Details page to initiate changes related to an order in Order Management. The Order Summary Details page provides a global view of the entire order lifecycle, including order capture, fulfillment, shipping, payment, invoicing, and service. From this page, a service agent can access various actions and flows to process changes such as cancellations, returns, exchanges, reshipments, refunds, and discounts. The service agent can also view related records such as Order, Fulfillment Orders, Shipments, Invoices, Credit Memos, and Change Orders. Reference: Order Management Console, Order Management Lifecycle

The Status field on an Order Summary object is a picklist data type. A picklist is a field that allows users to select one value from a predefined list of values. The Status field on an Order Summary object indicates the current state of the order, such as Draft, Activated, Completed, or Cancelled. The values for the Status field are defined in the Order Status picklist field on the Order object. Reference: Order Management Objects, [Picklist Fields]