I have had this issue for a long time. I have never used third party apps and have followed any of the recommendations.
Recently I have tried closing the Tesla app on my phone. It pops up and warns me not to do it so it won't impact the performance of the key function blablabla but low and behold no more standby current.
This reminds me that I sometimes saw my car in the bluetooth connections on my phone when it was parked. Everything I could turn off was off but it showed up anyways. Since I keep closing the Tesla app I don't have the issue anymore.
Turns out at least for me its not third party apps but the official app causing the problem.
Disable sentry completely instead of relying on the exclusion (which sometimes bugs out) and check again. And is your 2-3% per day measured over a course of a few days? If not, it may just be a temporary lower SOC detection that recovers as the battery warms back up (sometimes it doesn't show the snow flake even in this case if it's just borderline).
Mine was 2-3% per day so for 4 days I'd lose 8-12%. Turned out temperature had nothing to do with the loss and Found solution to my issue: Deleted home wifi (i.e. forgot wifi) and car stopped draining battery. Car is parked approx 100 feet away from wifi and I guess the car was attempting to connect to home wifi after signal loss and as it was within range.
Thanks for the suggestion. def also worth looking into as I have never thought that far as sentry mode off meant "OFF".