How normal are these scabs/divots and no shedding at nearly 3 weeks post-op? (Photos)

It is best to contact your surgeon for post surgery issues and care since all doctors have slightly different instructions.

If you have been taking care of your scalp, by three weeks postop, your scabs should be gone.  Consider giving your surgeon a call and going in to have the area checked

Those deep scabs and divots look like focal areas of necrosis. They are not normal and could cause damage to the growing follicles