That is a crappy source, here is a better overview, which specifically calls out your source as being ridiculous and failing basic a common sense check:

https://www.sustainabilitybynumbers.com/p/electric-vehicles-...

> One study hit the headlines when it claimed that tyres emit ‘more than 1,000 times as much pollution as exhausts’. There are a few reasons why we should be cautious about this result. The first comes from a small sense check on the numbers [see the footnote for details].3 The second is that most of the particles (by mass) that are emitted from tyres are large, and large particles are less problematic for air quality and human health. It’s the very small particles – less than 2.5 microns – that we’re worried about. A much smaller fraction of these particles will be in that size range.

> So, I think the ‘1,000 times as much’ headline is too high. But, tyre wear is still significant and we need more research on it.