I'm software, but towards the hardware side of things, for decades, in silicon valley and elsewhere. I've worked with (as in, in the whole org) exactly zero software/firmware, and only one black hardware engineer (born and raised in Nigeria). I've interviewed a couple hundred people at this point, with only one being black.

Where I've been, trying to get some DEI policy to influence who's hired would be impossible, since the panel has to agree, and there's no way they would agree to someone not qualified. Even with pressure like "we really need to hire someone before end of month or we'll lose the req", the response has always been "find better people then".