Brake Grinding Noise problems of the 2019 Volkswagen Jetta

Car makes grinding noise when going between 20-40mph, every car I test drove made this noise so I assumed it was normal. Not as loud in the sport mode but noticable in eco mode more. My car has 4000 miles on it. Vw says it is a normal sound. Also breaks squeal very loudly when backing up, again they say normal.

Vibration and grinding noises at low speeds. Started around 200-300 miles on the odometer. Originally only occurred in eco mode now happens all the time. It has gotten progressively louder and more severe over the last 4-5 months I've owned the vehicle. Took it to the dealer twice and they told me it's normal but it sounds and feels terrible. The car feels very unsafe. Sometimes it accelerates very slowly and other times I barely press the pedal and it takes off and the tires spin. When driving in eco mode the internal computer seems to forget and switches back into regular drive mode but the eco mode button will stay illuminated even though the dash display says it is in drive. At higher speeds the grinding becomes more of a low growl or scrape and also vibrates much more especially when turning or accelerating. When I first start the car to leave home or leave work my brakes screech the first 3-4 times I apply them. It's so loud that my neighbors have complained multiple times. No matter what kind of driving I do or where it is the vehicle feels unsafe and makes loud grinding noises when accelerating or cruising.