This is a PET PEEVE of mine...

As far as I'm concerned, installing ANYTHING to do with drivers/patches/DSDT/boot etc. on the macOS APFS partition during install.post-install stops it from being a Vanilla install...

For an install to be "vanilla", it should not install any 3rd party guff onto the main install partition. (EFI is a different matter entirely).

Many guides ask you to use /L/E but every single time, I have included the kexts in my Clover/OC kexts folder, and they work perfectly fine (I know Apple wants to deprecate this behavious, but it is still working for me with Mojave 10.14.6 + OC 0.6.0)