Most features that come with the new software update that is rolling out to Samsung Galaxy Watch Active 2 smartwatches in the US were introduced in South Korea last month. The list of changes is long enough and includes solid improvements such as enhanced GPS tracking, voice guidance in a few scenarios, as well as various tweaks and fixes.
https://www.notebookcheck.net/The-Samsung-Galaxy-Watch-Active-2-gets-improved-GPS-tracking-thanks-to-the-latest-software-update.506216.0.html