Samsung Internet Beta version 14.0 is still rolling out on Google Play but if you have it already, you can try to play with some of the new features that were presented in the official press release.
The settings tab got a new Privacy and Security section where you can see stats of blocked ads and trackers. Another Labs section in settings has a checkbox to use your system fonts in the browser app.
Apart from these, there are also some Samsung-specific features for multitasking and S-pen integration.
The lates version may not be available via Google Play to all users but you can also get it from APKMirror.