GNU/Linux MX Installing Radeon RX 6800/6800XT Driver Guide
Hi! The linked Tutorial shows you Step-by-Step How to Install AMD Radeon RX 6800/6800XT Graphics Driver in MX GNU/Linux 64-bit Desktop.
And the Radeon RX 6800/6800XT Linux MX Driver Support is the AMDGPU Software.
Moreover, the AMDGPU Driver supports all AMD Radeon GPUs based on the Graphics Core Next (GCN), Radeon DNA (RDNA), and Compute DNA (CDNA) architectures.
AMDGPU MX Linux Installation Guide