It seems that with the latest kernel 6.7.3 the problems with my AMD
graphics card are solved. Now DVR works with both ROCm and Rusticl
(just use "RUSTICL_ENABLE=radeonsi"). The performance between the two
OpenCLs seems similar to me.
In contrast, for those using Blender, rusticl is not implemented and
ROCm-Hip must be used.