Unless you are actively managing hive population, you'll want to split, if you dont the bees will eventually do it themselves.
Remember beekeeping!!! It is like reading beekeeping for dummies. The book gives you simple, easy to understand BASIC information that works!! THEN you listen to other beekeepers and find out there are actually half a million ways to do things. Splitting is the same.
Some claim the easiest split is a walk away split, and indeed, it can be! But it can also leave you without a queen if anything goes wrong.
It is my opinion that the easiest split is an even split with a new queen. Having a queen in both boxes means you dont have to worry as much about eggs and new larvae. To me, this split is even easier than hiving a package. Evenly split a hive into two new boxes. Face the entrances toward the old hives location. Do this in the afternoon. IF, you didnt spot the queen, go out the following morning and listen to the hives. One will be louder. Look at the hives. One will be obviously upset, the other will be much calmer. Put your new queen cage into the louder, more upset hive and close it up. If you found the queen the day before you already knoiw which is queenless, so can put the cage into that hive. Come back in two or three days and remove the candy cork. Check back in a week to make sure the queen was released. At this time if the hives do not appear to be equally distributed swap places.
In moving a hive only a few feet, or changing the orientation (direction) I put a robber screen on, and usually a board in front of the entrance about a foot away to change the view and make the bees slow down and realize something has changed. I havent had any problems with re orienting when i do this, and it saves me from having to take that hive two or three miles away.
EVERYTHING in beekeeping is controversial. Nothing you ever do will be "perfect" in the eyes of all beekeepers. Find a SIMPLE method you can make work, and use it. Then progress from there. Read everything, watch everything, and then change everything to what works for YOU. Even what i have posted here.
Iddee, Perry, Robo, Don (the fat bee man), Crofter, Ef, Jack, and so many others each have worked out methods they LIKE and use successfully, and those methods arent the same! But that does not make any of them wrong.
Make it simple to start! The simpler it is the easier it is to figure out what went wrong, IF and WHEN something does go wrong.