Samsung is bringing a few Galaxy Note 10-exclusive features to the Galaxy S10 line. The update improves system-wide and picture-specific search and an Auto Hotspot feature that can automate connecting a device with a Samsung account to a Galaxy S10's hotspot. The update is rolling out, though the release timeline varies based on country.
https://www.notebookcheck.net/Samsung-Galaxy-S10-is-more-like-the-Note-10-than-ever-thanks-to-latest-software-update.442634.0.html