To get 4K texture you need to change MAX RESOLUTION to ORIGINAL in IMPORT SETTINGS of BlenderKit addon. press N key to open Sidebar . Sofa and cushions have an adjustable fabric shader with fiber particles. You can easily change color and sheen parameters. Most particles are hidden in the viewport for better performance. Sofa fits great in modern interiors. Sofa is created with overlapping UVs so seams are left on the model in case you want to UV unwrap it differently.