Short answer is "no." More complicated answer is "it depends."
The problem with briquettes and Eggs is that briquettes normally use a binder to hold them together. As the briquette ignites, the binder burns off, giving a bad flavour. In a metal barbecue this doesn't matter as you typically get the briquettes fully lit before you put any food near them. But in a ceramic barbecue you typically ignite fresh fuel all the way through the cook. So using briquettes in an Egg would expose your food to those bad flavours all the way through the cook. And the aroma tends to linger in the ceramics.
There are a couple of exceptions though: some briquettes don't use binder, and comprise sufficiently high grade fuel so as to burn with a clean flavour from the start. I'm not familiar enough with the US fuel brands to be able to suggest a product like this. Or if you get a small quantity of briquettes lit off the Egg, wait until they are burning well (they look ashy and grey all over), then put them in the Egg, they would work - but you'd lose the fine temperature control, you might not get the full cook time you need from them, and the thermal shock would risk cracking your fire bowl. So it is a bit of a gamble.
Bookmarks