This is cool. I have a VW EV and use the B-mode for the "gas" pedal. It it not full one-pedal driving but IIUC exclusively uses regen. You can't decelerate rapidly, but most driving can be accomplished without touching the brake pedal except when down to a walking pace, where thanks to that square law relationship of speed to kinetic energy there's hardly any energy left to recover anyhow.

After a bit you learn how much you can slow down with it and (for me at least) it becomes a bit of a game to see if you can avoid using the mechanical brakes by choosing early enough to lift your foot.

As a result, the mechanical brakes get squeezed on every trip, but nearly all uses are during low speed maneuvering. If a light changes at the last moment or someone pulls out in front of me I will then have to make a substantial use of the mechanical brakes but that doesn't happen on every trip.

I never have to ride the brakes down a long hill, and it was really satisfying the one time I went down a hill long enough to see the battery state of charge increase by a percent or two.