Sorry to hear you ended up with Covid. I was on this cruise, too. My travel friend and I masked for all crowded situations on the ship even though not many people were doing so, some were masking, and that was appreciated. We didn't go to the shows, or other entertainment. Mostly my friend was super tired from her work schedule so we just watched movies in the cabin after dinner.
We were able to get a two person table assigned to us after the first night which we kept for the rest of the cruise. We did not want to share even if it meant getting seated sooner. Of course we picked the super early time of 5pm for seating.
We didn't go on any ship excursions either. We did take the port shuttle into Victoria. We scheduled our own reservation for tea at The Empress, and did some shopping on the way back to get the shuttle. As you mentioned Astoria was skipped due to weather. That was a rough day/night on the ship. Not terrible but definitely a lot of rolling with the waves. We booked our own Alcatraz tour in San Francisco, which I was glad I had pre-booked online in advance. For Santa Barbara we just walked along the beach for a bit, then got back on to the ship. We timed it just about right b/c the rain had stopped when we got off the tender, and started back up again just as we got back to the ship. I am glad we didn't get stuck in the tender suspension during the afternoon due to the wind.
Overall it was a low key relaxing cruise. We enjoyed the ship, and our balcony cabin even though we didn't use the latter but a couple of times. Due to the weather we didn't use the pool or hot tubs either.
Hope you're on the mend now, and recovering well.