I'm moving to move in with my significant other, but I've noticed rents taking a dip here in Toronto. Not sure how it is in SF, but here all buildings older than November 2018 are rent controlled - leading to good opportunities when rent dips, especially if you didn't have a great rate to begin with.
My SO and I "saved" around $400/month thanks to COVID - identical 2bd/2bth units to the one we got were renting for ~$3100/month pre-COVID, we got ours for $2700/month.