Nobody said they generate more but simply that they generate some. Modern petrol engines output very little particulates so almost all the particulates are from tyres and brakes. Why would EVs produce any less?

While EVs are heavier—increasing tire wear—their regenerative braking significantly reduces brake dust, and they eliminate tailpipe exhaust entirely. Overall, EVs offer a net reduction in particulates.

The WSJ and Daily Mail both ran stories with headlines explicitly stating that they generate more particulates. I can't find any credible source stating the same, so I'm assuming the stories were the usual agenda fiction, but they do exist.