Linen likes room to move. Wash it on a gentle cycle with mild detergent, avoid overloading, and remove it promptly so folds do not set hard.
Work with the material
Air-dry when possible and press only the areas that need a clean edge. A little texture is part of linen’s character, not a defect.
Build a gentler habit
The fabric softens through use when it is allowed to keep its natural irregularity.