Say what you will about FFX but it has good worldbuilding, engaging story and decent lore...

Not him but I thought the general combat was good. Refreshing resources after a fight is a good thing not a bad thing because it allows the devs to design fights as encounters where you actually use your resources instead of dungeon crawls being "spam attack to save on ethers" the entire game. Also, /ss/ and music was pretty good.

So someone explain the story Pls. How can sin be jecht? How can tidus and auron travel into the future? What the fuck was seymors intention and problem? I haven t played since the ps2 days, please be gentle

not him but

Buffs & Debuffs are important throughout the game, no other FF game has this

the combat has a lot of depth hidden in it, unfortunately the game does not advertise it well
for example your first paradigm shift instantly refills all the party's atb gauge, and this has a 12s cooldown throughout combat, there's no way to see the cooldown but it is a very real thing and encourages you to swap paradigms often, atleast every 12 seconds.
the roles buff particular aspects of the combat, the more Ravs in a paradign the faster the break bar fills, the more commando's the more physical damage your party deals.
more Sabs increase chance of landing debuffs, more Syn's increase buff duration etc.

all the items belong to an item group, and equiping enough of a particular group offers additional benefits in addition to the items themselves, indeed one such group offers immunity to physical or magical damage.

there's a finesse to the combat that the auto-battle doesnt offer, its not terrible it can just be done better manually, you can force characters to act when any ATB bar is full if you wish, you dont need to wait for all of them to fill, the AI will attempt to mix up various attacks, for example when an enemy has no elemental weakess the AI uses a mixture of all the elements because mixing it up adds damage, but the role of the rav is to fill the break bar, and spamming spells like thunder is more more effective because thunder has no travel time, compared to blizzard which takes forever.

i really wish the game had a hard mode, or that every boss cast doom on the party at the start like the Eidolon fights, the lack of pressure on the player ends up having many people play like shit with having medics in every paradigm, which is completely redundant and un-needed.

Did you not finish the game? When a summoner reaches the end of their pilgrammage, they have to choose one of their guardians to become the Final Aeon. For Lord Braska's pilgrammage, Jecht offered to become the Aeon, when the Final Aeon is used to defeat Sin, Yu Yevon posesses the Final Aeon and slowly turns it into the new Sin.

You should honestly just play the game again at that rate, it sounds like you'd essentially be experiencing it for the first time.