[xxs]

Polishing, sanding concrete will produce tons of tiny dust particles just as cutting the stone.

[Reason077]

Yes, but the dust from concrete or natural stone doesn’t seem to be anything like as dangerous as the dust from engineered stone.

(You still should use PPE and avoid inhaling it, of course!)

[xxs]

Don't know about 2000+ grit polishing concrete, it's likely to be wet sanded but still. The particles would be a lot finer.

The 'engineered' stone is just very fine dust along with binders.