Index of /amdgpu-install/
[https://repo.radeon.com/amdgpu-install/] - - public:mzimmerm
Repo of rocm (amdgpu) packages from amd. The last version 4, 4.5.2 is under 21.40.2. Try to install with Kernel 5.4 (release 2020). Same packages under different old names are at https://repo.radeon.com/rocm/apt/