New socks in the last 5 years have been visibly poor quality. The nylon band that hugs your leg loses it's stretch after a few dozen washes.
My older socks of the same price and (seemingly visible) quality from 10+ years still have nylon going strong.
I've had to adapt to this by now rolling my socks together before putting them in the drawer, instead of bundling them, as I have done for these past X decades.