I know it's available for this line of phones which I've got the S22Ultra, I've learnt from my time in testing Software on PC once the stable version comes out not to update to it right away as they say it's stable but your still testing it for them, best wait till all the bugs are fixed then update as probably not missing out on much between Android 12 & 13 with one ui4 & ui5.
That's why I'm still staying on Android 12 one ui4 till everything is sorted out, as my S22Ultra runs great without any problems.