The article says that rents in SF are down. Housing prices are up. Anecdotally, almost everybody that I know that rents in the City has moved, because they were able to get a better deal.
I don't know about SF, but in the South Bay, house prices may be up, but condo prices are the lowest they've been in years. And that is despite record low interest rates.
This is a pandemic-specific phenomenon. I would expect it to return toward the previous price relationship over the next few years.
Yes, I'm pretty sure that's true in SF too. It's a great time to buy a condo in the Bay Area.