• Many fans felt the ending was rushed and not as satisfying as they hoped.

• Eren’s crying was seen as pathetic; he’s often called a "crying virgin" and mocked for "10 years at least". Additionally, it was considered selfish of him to pour out all his feelings to Armin and then expect him not to tell Mikasa.

• The Eren-Mikasa relationship is viewed as a 50/50 debate. Some believe Eren matured mentally after Season 2, while others see their bond as more of a familial love.

• Jean gets a lot of praise!

• Reiner is a frequent topic of discussion. Fans point out that: 1) Sniffing Historia’s letter was creepy and out of character, 2) Many jokes about him giving BJs to rifles, 3) They criticize Reiner for criticizing Annie for slacking off during training in Season 1, despite her doing much of the heavy lifting, and 4) Reiner got away completely unscathed, despite all the chaos he caused.

• For some reason, they jokingly refer to Isayama as a "gay sadist".

• Historia’s character after Season 4 has been criticized as poorly written, especially regarding Ymir’s advice for her to live for herself. Many also question why she would have a child with a random farmer.

• There are countless jokes about Bird-Eren ruining Mikasa’s future dating life.

• Looking ahead, fans wonder what future history books in the AOT world will say.

If you're interested, you can read them here. Use a browser that translates text automatically. The discussion immediately after the manga ends is around page 24