I have the opposite experience when creeping with Stop signs. FSD usually stops at the sign which is fine but often takes forever to creep forward which is a real problem when the Stop sign is 20 plus feet from the intersection/cross traffic. That is very common where I live. That also often results in cars behind me getting very impatient as well so they will often honk. The creeping is slightly better with 69.2 but still takes way to long to creep forward IMO.Top good/bad highlights of my experience after 4 days with 10.69.2:
Good:
I've had zero (yes literally zero) instances of it trying to cross the double yellow line and use the oncoming travel lane to pass queued cars at stop signs and traffic lights. It's rare for me to go a full day without this happening during the school year (typically on 10.12.2 it would do this several times per day), so 4 consecutive days is a very good sign. This is a big deal to me, and is really reducing my anxiety level on my daily commute.
Bad:
Although it seems to me so far that it can correctly draw the creep wall at the point beyond which you'd be in contact with cross traffic, FSD seems to like to zoom up to that creep wall as fast as possible. Even if FSD is planning to stop just barely in time, the crossing traffic thinks I'm going to cut them off and slams on their brakes. FSD also does this even when it can already clearly identify lots of conflicting cross traffic from where it already is, and seems to do it even when it has creeped far enough where further creep offers no additional visibility.
Where I do see the behavior you mention is when there is no Stop sign at a T-intersection and FSD goes right up the cross traffic and stops then quickly makes the go/no go decision.