Game detects only integrated GPU

Please, can someone help me?
I have a PC running Windows 10 with 32 GB of RAM, an AMD Ryzen 5 7600 CPU, and an AMD RX 7800 XT GPU (using the latest AMD drivers released for BF6).
When I launch the game, even at the lowest settings, performance is extremely slow — as if the game isn’t recognizing my GPU.
When I check the graphics settings, the available VRAM is shown as only 485 MB total, as if it’s detecting only the integrated GPU instead of the dedicated one.