Just as another point of reference, my (2021) Mazda 3 AEB has only ever activated when another driver stopped short in front of me. I believe it's configurable

Just as another point of reference, my (2021) Mazda 3 AEB has only ever activated when another driver stopped short in front of me. I believe it's configurable in settings, though your experience may be worse due to environmental concerns (bugs, rain, dust), different model year, or simply being a bigger vehicle (with a different bumper height or more mass requiring more time to stop).