Samsung has started to roll its latest version of One UI for mobile devices out to the Galaxy S10 5G, the OEM's 2019 flagship smartphone. The upgrade confers Android 12 on the nearly 3-year-old device. However, the OTA is only available in certain markets to date.
https://www.notebookcheck.net/Samsung-starts-to-upgrade-the-Galaxy-S10-5G-to-One-UI-4.593674.0.html