I doubt it will really compare to an actual truck. When you're driving one, the pedal is the easy part. The truck has so much torque it is harder to stall, unless you're loaded heavy and on a hill. The tricky part is getting your shift windows without synchromesh.

I remember when I was learning, it was a bit challenging to hit my shift windows at first, and remember what split I was in when I was on the road. Back then I had a little xB and a FJ40. Both of those were manual. When I got back into one of them, it felt insane that anyone could screw up in one of them.

I had already learned front end loaders, skid loaders, and a skid steer, and was working on a certification for case controls on an excavator, so the coordination complexity of hands and feet were no big deal.

The clutch is all about feeling the difference between the spring pressure and the friction.

Anyways, at least for me it can help to think in perspective like this; about other areas where the same basic skill applies with perhaps even more complexity. Like after a few days on an excavator you stop thinking about the individual controls and start thinking about the bucket like your hand and the boom like your arm and the pivot like your waist. The brain, or at least mine, abstracts away the motions like an extension of your body. It is such a strong connection and the hydraulic feedback is so direct, that you can "feel" with the bucket without actually seeing into the trench. Like if you hit a rock, a root, or even conduit in the ground, you can feel it in the controls like it is a part of you.