I'm running Mac OS 15.2. Ever since I got my new Garmin 255S in the fall, whenever I plug iit into my computer, Garmin Express opens and crashes a few times before it finally syncs successfully. Today there was an update to the watch that required probably 7 or 8 relaunches of Garmin Express before it finally got through the update.
When Garmin Express actually launches successfully, it usually syncs just fine. But the crashes are reliably regular.