[c#] What's the difference setting Embed Interop Types true and false in Visual Studio?

In Visual Studio, when adding one reference to the project, the properties window has an option Embed Inteop Types, should we set it to True or False? What's the difference?

Since we have a lot of projects, among some of them, reference was set to False, others were set to True, it is totally mess up. And the bulid server also have the same warnings:

What does “reference was created to embedded interop assembly” mean?

So we plan to change all the Embed Inteop Types to False, what risk would we get?

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I noticed that when it's set to false, I'm able to see the value of an item using the debugger. When it was set to true, I was getting an error - item.FullName.GetValue The embedded interop type 'FullName' does not contain a definition for 'QBFC11Lib.IItemInventoryRet' since it was not used in the compiled assembly. Consider casting to object or changing the 'Embed Interop Types' property to true.