Most have no gear changes at all - here's probably more than you needed to know:
https://thedailyautomotive.com/does-electric-car-has-gear/
"Why just one gear? Electric motors are incredibly efficient. They can operate effectively across a wide range of speeds, from a complete stop to highway cruising. Unlike a gas engine, which needs gears to stay in its “sweet spot” for power, an electric motor gives you instant torque at any speed. It’s like having a car that’s always in the perfect gear. Pretty cool, right?"