How true are "diversity quotas"

It's a chud buzzword I hear often. It's something something "prioritizing diversity at the expense of quality" which makes no sense because the whole point of DEI is to make the workplace more welcoming not targeting obviously impossible and bullshit quotas. Yes DEI is handled horribly because usually the actual policies fail to help employees from marginalized groups work with the same level of proficiency required to do their job.