The F150 Lighting (and the Cybertruck) are failing precisely because it was impractical. It was expensive, has limited range when doing actual "pickup truck" work, like hauling tons of construction materials. It was built for the very niche market of buyers at the intersection of luxury pickups and EVs.
People who buy huge luxury pickups tend not to want EVs, and people who buy EVs tend not to want huge luxury pickup trucks.
A practical work truck needs to be smaller, less luxurious, and less expensive, electric or not. If Ford follows through and releases a plugin-hybrid Maverick with 150ish miles of EV range plus the onboard generator, that would be ideal.
A pure EV drivetrain on the other hand is incredibly practical for daily commuter and even long distance travel - assuming you have home charging - but not for hauling tons of stuff long distances.