Volkswagen ID.Buzz cargo rubber floor mat (cut to shape). Fits to 2022 and newer models. Rubber matting significantly reduces sliding of the objects. You'll also keep your car tidy for much longer.
The mats are cut to shape for cars with a sliding door on the co-driver's side. If your car has a sliding door on both sides, you can use the same mat but you have to cut the shape of the opening on the left sliding door by yourself.