I can share some information about this matter, @bhaines.

When running reports in QuickBooks Online, the bundle isn't included. An example is when running the Sale by Product/Service Detail report the report's filter doesn't even include the bundle item from there. Also, the report will let you see the sold quantity from the bundled item but won't indicate what bundle the item/s is coming from.

I've added these screenshots for your visual reference.

Get back to me if you have any other questions. I'm a few clicks away to help. Have a good day!