Bullshit.
At my house in FarNorCal, I used a Sharpie to fill in 37 bubbles on my ballot, then returned it in person to my designated station, put it directly into the electronic machine which recorded all 37 marks I filled out. The instuctions that were included also showed very clearly how to correctly complete the ballot, example even showed a Sharpie..
The Sharpie thing is some weird slide… it's bullshit and if you continue to repeat it you will look foolish when facts are exposed.