The top-end Galaxy Z Fold3 phablet has become eligible for the latest version of Samsung's One UI, as has the Galaxy Z Flip3 clamshell foldable phone. Users of either high-end device in the OEM's native South Korea can now download their first betas of the latest 4.0 version of this software, which upgrades the devices to Android 12 and its newest features.
https://www.notebookcheck.net/Samsung-releases-One-UI-4-betas-for-the-Galaxy-Z-Fold3-and-Flip3.576481.0.html