Some people never really learn how to use one-pedal driving, so they end up just going back and forth between accelerating and decelerating. That'll make me motion sick in a hurry, and I bet that is fairly universal (among people prone to motion sickness in cars, that is). So in that sense, any EV or hybrid is potentially a problem, depending on the driver.
This is giving me flashbacks to the time I took an uber home from the airport in Dallas. 25 minutes of an older gentlemen (65ish) just modulating between gas pedal and brake pedal the entire time. It was awful and I wish I wasn't such a coward at the time and had told him after he dropped me off.
In the racing/track world, any time spent off the accelrator or brake is literally leaving time on the table.
The idea being; you are going at 10/10 until the exact point you know you need to go 4/10 at an apex and apply full braking. Then getting right back up to 10/10.
Similarly, I notice that i do a lot of this "sine wave" driving (IE , gas, brake, gas brake) when I'm heavily loaded with passengers or on a curvy road where I don't quite know the ratios. So I'm often not expecting to need to brake so heavily but, for safeety of course, need to.
Yea, I get it for driving on track, but not on the highway just managing space between you and the car in front.
Re: your curvy road, I would say at that point you might just be driving too fast for the load in your vehicle. When passengers are onboard, a smooth ride will beat everything 99% of the time. If I have to suddenly break for a sharp corner, then I apologize and slow down so it doesn't happen again.
The instant-on power and braking takes some getting used to. For the folks who have trouble mastering it, my recommendation is chill mode. It has a much softer acceleration profile, mostly eliminating the harsh starts you might be experiencing.
Chill mode is all upside in my book. There's still a ton of power when you need it, it's easier on the tires (and thus your wallet), and you get jerked around less.
I suspect most people's interaction with Prius' are Uber rides. Maybe Uber drivers just get bad habits from the platform incentives (drive fast = get more rides)
I don't sit in enough EVs to tell if they're the same.