So I played a bunch of this earlier, was pretty good. Getting used to the combat, it's a bit odd, just the button layout displeases me so I'll have to change that.
So I was well aware that this game has been supported since launch, with various additions and fixes. 2 such additions are new game plus and chapter select. Unfortunately your level remains what it was when you beat the main game in new game plus and chapter select. So you will be completely overpowered for most of the games content if you had levelled up to what the game recommends. 1 shotting everything doesn't have much value to me past a glory run as I like a challenge and to actually get to use all my unlocks in a new game plus or through chapter select.
Also for difficulties it only has easy or normal, hard or above being oddly absent, too hardcore for FF fans I guess.
Fortunately, in a needlessly tedious way, one can remain low level(as low as lvl1) but beat the game if they use a free dlc accessory(called nixperience band) that stops you from gaining EXP. A nice item for challenge runs or for those that don't want to be overleveled. The game gives you a fair amount of ways to beat it at low level, like using item buffs for massive damage(eating food when you camp gives you buffs that are of a certain level, so lvl20 damage buff omelette), certain weapons or using OP moves/exploits.
But I honestly don't know what excuse they have for not having a level changing option of some kind post game, to let you delevel yourself wouldn't take much effort since its just basic stat changes, no stats to spec into at all your general stats just go up each time. New game plus should start you at lvl1 again with all your unlocks, so if I want to replay again with all my goodies I'd have to do a forced challenge run just so I'm not OP when I replay.
It's such a blatant issue that the devs must know, all you have to do is hit start on NG+ and the games a joke. Maybe they don't see it as an issue or really don't care or maybe having a level changing option is too much for shovelware-RPG-number-mongers to handle. I imagine the PC port will be easy to change stat values in the code or mods or something(cheat engine?).
Stylish tech display, royal arms are unique(unique move sets) weapons you get late game:
Read the description for this one, it details how to perform the presented nonsense:
Weapon switching, this makes up the brunt of the tech, along with air tricking/warping as seen above:
This guys channel has tons of stuff on FF15, moveset breakdowns and each weapons counter attacks.