My phone is the Samsung Galaxy J-3 Prime, and I liked it, but it has issues. What I mean by that is that it restarts when using apps, and it isn't the smoothest of ice out there. I've heard some information that the j3 prime is going to get a further update, but is it true? If you know anything about this please be sure to post a comment and tell me about it.
To do if your device is El to receive One UI - Check the Notice here on Samsung Members - I'm not familiar with the specs of your device - But it's possible that if you are running it to the "limit" you may expect Reboots or other issues - One UI may or may not add this kind of system issue 🐧
I'm pretty sure that Samsung has rolled out OneUI Home and Pie on the J3 Prime, because I got the update on my J3 a month ago. I don't have root access to flash the system image, so I know that it wasn't something I had done.