Not really. The lack of votes seems to be in the younger “social media” generations. The lead up to polling day was very pro-Kamala and on polling day itself, sites like Reddit were a stream of “I voted Kamala” posts. Whether that was propaganda influenced or not is beside the point.
What it seems to have done is convinced a subset of Kamala voters that they didn’t need to go and stand in a 2 hour queue to vote because it was already won, which of course now we know to be very untrue.
People assume that the bot armies are only pumping out pro-Trump propaganda. However, they only need to convince the Dems not to vote.