As I said in this post, the homebrew package is not maintained by the ROOT team. I don’t know who the maintainers are and how much they make sure that it actually works. If you have any problems with it, I would suggest to reach out to to homebrew maintainers directly.
What you could also do is to use ROOT by installing it via the nix package manager. The ROOT package there is developed and tested by us, but the learning curve of nix is admittedly a bit steeper than conda, brew or the like. Sill I wanted to put this option out there as I know it works.