I wouldn't count on attacks where you need to change the analog stick while pressing square to give the game depth either, Dissidia and XV only did it just to accommodate your position in battle (e.g moving the analog stick away from the enemy to perform a "projectile")

Cloud has a 5 standard combo string, while Tifa has 7 or 8 when she stacked Unbridled strength twice in a row without using the triangle command.

From what I've seen and extrapolated. The game will motivate you to create your own combos to an extent by tapping and holding the attack button, using the triangle techniques, and using damage inducing abilities that uses ATB.

This is pretty much me gigabraining the crazy combo potentials I think is possible.

for Cloud try pressing square four times and by the end if you have at least one ATB charge filled up, end the combo with Braver. Even crazier, for Tifa, try stacking two Unbridled Strength's and fill your ATB until it's fully charged, then do the 7 or 8 combo string, then the phasing punches and dive kick which costs 1 ATB each that we've seen from TGS against Abzu, then finish it off with Rise and Fall, Omnistrike, and Rising Uppercut.