Stapling wire during remodel?
This is fine
Not stapling fished NM cables in remodel work is permitted by NEC 334.30(B) point 1:

(B) Unsupported Cables. Nonmetallic-sheathed cable shall be
permitted to be unsupported where the cable:
(1) Is fished between access points through concealed spaces
in finished buildings or structures and supporting is
impracticable.

So, fish away, and don't worry about tearing up drywall to get staples in.