In a large saucepan, cook bacon over medium heat until crisp. Remove bacon, and let drain on paper towels, reserving 1 tablespoon drippings in pan. Add butter to pan; stir in shallot and garlic, and cook until tender. Add white wine, and cook until wine evaporates.
Add cream, and bring to a simmer. Add Brie, cream cheese, and Parmesan, stirring until melted and combined. Strain mixture through a fine-mesh sieve. Cover and refrigerate until cold, up to 5 days.
Preheat oven to 450°.
Pour rock salt onto a rimmed baking sheet. Place oysters on rock salt. Top each oyster with about 2 tablespoons Brie sauce and 2 tablespoons bread crumbs.
Bake until browned and bubbling, 10 to 15 minutes. Crumble reserved bacon, and sprinkle over oysters.
Notes
*Shucked oysters put in a metal or ceramic baking dish can be substituted.
Recipe by Louisiana Cookin' at https://louisianacookin.com/brie-and-bacon-oysters/