Hi all!
Well I can speak from first hand experience as we did a Sunshine Coast trip this week-end (4 ferry crossings).
I've been to the Island a few times as well over the years.
As much as I could complain about BC ferry like many people when going with the car, taking the ferries on your bike is really a breeze!
We were a group of 5 or 2 and would always be told to go to the very front, first to load, first to offload, all personnel very friendly with us.
Crossing for the island we even showed up 5min before departure they made us load at the very back last minutes.
Planning a trip involving the ferry is really not to avoid, it's cheap and a no-brainer.
As of recently, yes, make sure you have a "face covering fabric" when on properties (parking, deck, inside).
A real mask or simply your neck tube works well.