Does graves fall off much late game, and if he doesnt shouldnt that be overpowered because his mid and early game are so strong compared to other carries? Hes also a carry I see in almost every ranked game doesn't that also hint that hes stronger than other carries meaning hes overpowered??

It means you shouldn't make a new thread.

He has very high damage with his near-permanent 80% AS steroid, great utility on his smokescreen, pretty high burst damage, and is pretty naturally tanky.

But...

525 range, with one escape mechanism that he needs to use for the AS steroid. Can be a problem against teams with competent assassins.

he has low range which for an ad carry late game is typically bad, but he has extremely high incombat mobility compared to other ad carries and a monster as steroid so he fairs really well in late game.

Smokescreen also helps to compensate for lower range when you do get a window to focus a good graves he closes it right back down with a solid smokescreen that thing is one of the best utility spells in the game and when used well its probably one of the most frustrating mechanics to play against

AS steroid with mini flash
A Soft CC
And 2 AoE skills based off AD.
Not to mention a passive that helps him against harrass.

He doesn't fall off, just gets better over time.

graces sucks **** late game, abilities scale off damage, he has an AS steroid, and smoke screen. but he fails so hard because of his range, real easy to kill if u are facing a somewhat competant team. AD ratios on q/r dont scale well into late

not terrible lategame but other carries will do his job better

Graves doesn't fall off at all.

The only ones saying otherwise are probably terrible at positioning in team fights and just get insta-gibbed so the other carries that have a longer range is their handicap.

His in-combat mobility is pretty bad for an AD Carry. His dash does not go far at all, and he needs to use it for his AS steroid. It only has a good cooldown if he keeps attacking, which can be problematic if you are getting AS Shredded or need to GTFO without attacking.

Compare that to Tristana, with her long jump and knock-back to stay safe, Corki, with his massive dash and great ability to stay in a fight with his rockets, Vayne, who's dash comes with stealth and is on a two-second cooldown, or even Sivir, with her +50 ms passive and 20% MS ultimate.

the 80% as steroid that basically never turns off is pretty ridiculous lategame

there's no real glaring problems with his lategame; if he's been doing well all game there's no reason for him to stop doing so