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I thought brake pads use asbestos which contribute to the noxious particles.

I do think Vehicle-to-vehicle communications will eventually minimize the all the chicken necking, evening out the traffic and thus less breaking.

Brake pads have not used asbestos in several decades.

New pads on new passenger vehicles haven't, but it's still legal to use asbestos in aftermarket pads.

Fitting or sale of automotive products containing asbestos has been banned in the EU since 2004

I live in the other 75% of the world, though.

Unfortunately, I do not believe that this is true. My understanding is that it's still quite common, and even more so in developing countries.

Electric vehicles have regenerative braking when not braking hard. This dramatically reduces brake wear.

Hybrids as well.