Unable to check MPI option in QGIS while configuring plugin GIS4WRF
While configuring plugin GIS4WRF in QGIS, I tried to check MPI box it says mpich is not installed, even it is installed through homebrew in my system. I think it may be because the default directory of homebrew in Mac with silicon is /opt/homebrew/bin/brew while in Intel Mac it is /usr/local/bin/brew . I have suspicion that QGIS think about intel Mac and try to get the THAT directory. I have Mac M1-Max. Can somebody help ?

If you are willing to risk having some problems, you could try creating a symlink in /usr/local/bin/brew. I don't have any connection to GIS4WRF, sadly, so I can't give you any better advice. I'd recommend creating an issue in their repo: https://github.com/GIS4WRF/gis4wrf/issues