I was wondering about these too, but I think there are needed for the system so I think these are not safe to remove:
mhwd-nvidia
mhwd-nvidia-390xx
mhwd-amdgpu
I want to remove them because I don’t have any amd or nvidia components on my laptop so there is no reason to keep them. Can I delete them without damage my system?
I am an old user, however, I cannot say that I have a lot of technical experience, but I have a certain intimacy in the use of manjaro and I guarantee:
If your computer has nothing from AMD or Nvidia, there is no reason for you to keep such packages installed
You can check if uninstalling any of these packages will get you into trouble running