Late reply but here's what I noticed. Last year (December 2021) I took my first long road trip in my 2021 Model Y (Long Range) from Colorado to Dallas TX. With Autopilot engaged, I noticed a HUGE issue with phantom breaking. It was about an 11 hour drive during the night and if I had to guess, it probably happened about 10 or 12 times. While the wife and kids were trying to sleep during the drive, you can imagine the inconvenience. Well, fast forward to last month (December 2022), we made the exact same road trip and almost the exact same time of night as the previous year and I'm please to say it did not phantom break once! Not sure what update might have fixed the issue but the Holiday updated was installed prior to the trip.