The list of products and services gives you all the products grouped together, while the inventory/stock list report gives you the view of all products in all your warehouses.
Inventory > Inventory/Stock list
The list will present you current quantities in all the warehouses you have entered.
If you switch the view from 'Now' to 'Stocks on date', you will be able to move the date and time back in order to get a report on a specific date.
If you switch the view to stock by warehouse, you will have quantities in all the warehouses side by side.
You can print the labels from this report, filter the lists to create custom reports, export to xls, download to PDF or email this report.