You may want to just start another run. My 2.0 saves were bugged in that I both had no light in my apartment above the door, even though I did in previous game ver saves, and that I had a super low drop rate for cyberware capacity shards.
On the 2.02 save both were fixed. One hour into free roam before the heist and two have dropped already, both from Maelstrom goons. Even before this the only place I found shards were from random cyberpsychos in Dogtown - so I would still expect they drop from borged out enemies.