[ClarkMarx]

The current crop of cars use a paddle on the steering wheel, typically above the shift paddles, to actuate the clutch.

So you could use your left foot to operate both brake pedals, either individually or together, and your right foot to operate the throttle.

[js2]

That’s discussed in the article. One of McLaren’s drivers wasn’t comfortable using the hand clutch, while the other was. So three pedals in one car, four in the other.