Yes, I haven't heard of anybody specifically who has been concerned about voting in the election due to COVID.
I've heard a lot of concerns about people not wanting to go out and interact in public due to COVID. Guide dogs don't understand physical distancing, and we can't follow the pathways on the ground, so it's been very difficult for people with sight loss to do their daily activities.
As for refusing to vote due to COVID, I can say that I haven't heard anything specifically about that, but I have spoken to some people who are blind and who have said they're not voting until they can vote independently in secret, as every other Canadian has the right to do. There are some folks who are not voting because of the lack of accessibility, but they haven't said that it's specifically around COVID.