How to install amdgpu on linux?

[darkside]

I don't use Debian based distros, so I'm not sure, but maybe you could try Arch or Arch based distro? (Manjaro, EndevaourOS)

Then you can try:

https://wiki.archlinux.org/title/AMDGPU#Installation

or

https://wiki.archlinux.org/title/AMDGPU_PRO
and
https://wiki.archlinux.org/title/GPGPU#ROCm

Look here too:
https://hashcat.net/forum/thread-8630.html

I'm not sure, but it is possible that you can have a problem with OpenCL and amd gpu.