In my velomobile front motors (Crysta 406) are piloted by two separate controllers with one splitted throttle input, no vectoring or correction of any kind.
In speed control mode it's interesting to say the least.
I was sure it'd be a mess to drive, with inner wheel increasing torque as speed reduces, but that forgets the Ackermann compensation. Technically, inner wheel makes a tighter turn, smaller radius. Well behaved trikes are made accordingly, with higher angle on inner wheel. Apply more torque on a steeper angle and you have increased lateral force, inward of the curve.
Feeling is oversteer, like in a rear wheel drive car.
Or like in a front wheel drive with limited slip diff. Think Ford Focus RS FWD or rally cars.
It's less obvious in torque mode with modern controllers, but it behaves still slightly neutral to oversteer under load.
A real pleasure to drive: modulate power to adjust radius, place to velomobile exactly where you want it with throttle.
Recumbent importer & builder
Velomobile & handbike
Heavy hauler in the 400 kg class