That’s not really supported by evidence. Among other points against, tire dust scales linearly with weight and EVs are only about 20% heavier then comparable ICEs (e.g. model 3 vs Camry). That’s not even accounting for regenerative braking.
That has no relation to tire wear rubber dust.
It's not controversial that a heavier car that accelerates faster will wear out tires much faster (thus generate more rubber particles into the air).
Sure, EVs generate way less brake pad dust. But that's a tiny contribution to pollution. Brake pads are tiny compared to tires and in over 100K I've yet to wear out the brake pads on my ICE minivan but I've changed tires three times.