I just got a FSD trial of 12.3.4 on my Model Y. It's better than I expected, but still feels far from something that can fully autonomously drive. Freeway driving works really well and has for years. Street driving is hit and miss. So much that I basically turn it off unless I'm driving a known good path. It handles intersections, street lights, and stop signs just fine. It goes around cars blocking the road, waiting first for a clear path in oncoming traffic.

On the bad side, it brakes REALLY hard a lot and accelerates REALLY hard off of stop signs.

It often freaks out when pedestrians are near the side of the road. My car came to a rapid full stop because some bikers were standing looking at their phones about 6 feet from a crosswalk. Besides being jarring and annoying, it pissed off and scared the person behind me. The car wouldn't have moved if I didn't disengage FSD.

It drove right towards a very low curb that suddenly appears in the roadway by my house. It's an old curb that sits maybe only 3 inches high but would definitely feel like a slam and maybe damage the tire if we hit it. I'm guessing it doesn't look enough like a normal curb to FSD

There are a bunch of small experiences just like these. I disengage nearly every trip and often at least twice.