In fact, Johnson’s change was a downgrade, he brought the timing forward 5 years but changed it to the time to end all fossil fuel vehicles to the time when all vehicles must be able to use electricity. It will still be perfectly legal to buy a hybrid that only has a mini battery and motor but is to all intents and purposes an ICE car.The action is stop the sale of cars. That will happen, but the dates may change.
Yes, you'll see ICE cars, but you probably won't be able to buy a new one. Or if you can, it will be a low production expensive exotic.