We had a provincial election in October, although it was not a popular decision to call an election during covid..
Looking back, the total amount of votes was down 4% from the previous election. Only about 30% of those votes were on election day; the rest were mail in, or advance voting. We went to the advance voting station. It was well organized; only so many people in at a time, a new pencil for each vote (one of those little golf pencils), and sanitizer at the entrance. The advance poll was at an unused shop in downtown core, and I believe there was a different poll on the other side of town. You were notified of your polling station by mail.
There was no canvassing, but interviews and debates on television, as well as local newspapers. I can't answer as to how the counts were done, but there were no documented spikes in cases after the election. I also cannot say what would happen if a person was isolating and hadn't asked for a mail in vote.
I admit I was suprised when they announced the election but it went very well. Mind you, this was provincial, not federal so the voter turnout rate is always lower.