They’re not supposed to shed if you hang dry them. I can see them shedding if they go in the dryer and you don’t clean out the lint screen.
If you’re talking about sheets, on the label of the packaging it has a count number. 120 count, 240 count, etc.
The higher the count number, the closer the fibers are woven together, the better the quality. Lower count numbers do get a lot of pilling, threads unravel, and soon they’re only good for rags. Higher counts are more expensive, but hold together longer.
Towels, only thing I’ve noticed when they hung to dry, the fibers get stiff.