Depending on how I approach my car, it may or may not trigger a Sentry alert event. Mostly, it doesn't. My guess is that if the car recognizes the presence of my phone before I get too close to it, then no alert is triggered. Conversely, if my phone isn't detected until after I get too close to the car, then it'll have triggered an event before then recognizing me as its rightful owner. I haven't been out much since shelter-at-home, so I don't know if the behavior or "sensitivity" has changed with 2020.12.5.
However, if Sentry is triggered by other people/objects getting close to your car and it's saving clips of these events in the SentryClips folder, then it's doing its job as intended. For your peace of mind, I suggest testing it by approaching your car yourself (without your phone) and seeing if the fullscreen "sunburst" is triggered. After getting back into your car, verify the on-screen notification pop-up indicates the alert event and that dashcam viewer shows the event you intentionally triggered.