Those bristles, if they ever appear between joints, because gypsum boards are always overlapped at joints, you'll measure them sometime to the micron. Unfortunately you don't even know that wooden formwork comes after insulation, joining the final foil, which must be 1:100 vapor permeable compared to the first roof vapor permeable waterproof foil, only then come wall linings = material, not wall!, whatever you want to install. Meanwhile while you ferment nonsense, I outside around the walnut made a big pile of leaves. Probably at Breza the main merit for construction was carried by Bosnian builders as always, boss fattened well.