True, if by "some" you mean a few thousand rocket launches worth of shrapnel.

few dozen crashed satellites quickly become shrapnel on their own, spreading in all directions. not at "shrapnel speed" but nevertheless..

At Starlink altitude there is still operationally significant volumes of air. So much so that Starlinks need to altitude raise regularly. Starlink shrapnel would drop below Starlink orbit almost immediately, and completely deorbit in a month or so.

Oh really