"Does a pickup truck [presumably ICE] cause more harm to the roadbed than a heavy EV?"
Around here (Phoenix metro, exceedingly few farmers!), large (the industry calls them "full size") pickups dominate the market, e.g. Ford F-series. They are used both by tradespeople, as well as, more and more, general purpose transportation
the LIGHTEST Ford F-150 is ~ 4,440 pounds, and in many trims (which seem very common: crew cab, king cab, etc, 4x4, etc) are heavier. F-250 and F-350 series are heavier still. The F-series is, IIRC, sells the most units in US; or have the most units on the road, or some such.
The pickup lines from GM and Ram are similarly popular and common.
My old leaf was like 3,400 pounds, my new car, a Chevy Bolt is 3,700 pounds.
I mention this because I see more and more -- what seem to me to be distortions -- in the press that EVs are "heavy". Without mentioning it more depends on what type of vehicle, and not whether it's EV or ICE.
Here's and example, an editorial from the WSJ, which i would classify idealogically as mainstream, right-leaning, pro-business:
https://www.wsj.com/articles/electr...-california-ban-gas-powered-vehicles-521b29e3
"Electric Cars Emit More Particulate Pollution: They have greater tire wear, the source of most particulate matter"
This is paywalled but you get the idea: EVs are bad, ICE is good (or at least okay).