EVs do also have higher torque, so that may increase tire-based particles, but you're right that it avoids the brake pads for the most part.
Fewer cars in general is the win from congestion pricing, though.
And lower VMTs (vehicle miles traveled) is also a win for the planet, it's probably the best weapon the average person has access to in the fight against climate change. Transit usage begets transit usage; more fares paid to the agency enables better frequencies and more routes, leading to more people opting to take transit instead of driving... In a well-run system, it's a positive feedback loop (and the inverse, where people stop taking transit, can also lead to a death spiral, as happened across America in the mid-20th century).
If you substitute with “don’t travel far [or at all]”, it’s a big savings. If you substitute flying 1000 miles on an airliner with “drive 1000 miles instead”, or flying US to Europe with a cruise ship trip to Europe, you’ve probably made it worse; in that regards, it’s less the mode of travel and more the total distance in these trades.
The distribution of air-travel emissions, to me, seem pretty gross when juxtaposed with the number of people who are doing this travel. The incentives for business travel, in particular, seem misaligned.
The reason you get asked whether your USPS parcel contains hazardous substances X, Y, and Z and why the fines for violations are so stiff is partly because of passenger airline safety concerns.