With 10.69, you lost FSDb. The normal FSD continues to work - that is NAP, TACC, lane-keeping, manual lane changes, and stop at traffic lights unless green with a lead car. You lose auto turning/auto lane changes/traffic light/stop sign management. So honestly, you don't lose very much. For me, it's more of a matter after a long time on FSDb to re-train my mind of it's decreased capabilities, remembering that it's not going to make that easy turn it's done a thousand times before.
IMHO, FSD is much less safe than FSDb on city streets. Clearly you are running different code. Things like lane centering or just following the curve in the road is not nearly as smooth. What I thought was the incredible tech of a year ago now feels kluge.