As you progress in your anime journey, and you've watched more and more anime as time goes on. You'll notice that the anime you've watched in the past and your current anime share some similarities. You're likely to feel a sense of deja vu. Here are a few things you've probably or will encounter when watching anime.
Whether it be, the anime director found a few chapters irrelevant, wanting to change the viewers' perspective of the show or financial problems. Getting a rushed show always leaves viewers unsatisfied and disappointed. A solid example of this is The Promised Neverland. For a Weekly Shōnen Jump manga to get adapted like this, something is definitely wrong. Although the first season set the bar high for the next season, what was delivered was the exact opposite. Notorious for skipping arcs crucial to the plot and an attempt to adapt 144 remaining chapters into an 11 episode anime. It has gotten to the point, though the reason is not confirmed, screenwriters don't want their names displayed in the credit scene. Because of the rushed anime and ending it has been an utter disappointment to viewers, let alone manga readers.
Don't get me wrong, there is nothing wrong with CGI (computer-generated images). CGI can be great when used properly. There are some great anime that has used CGI to its full potential. Shows like The Fate Series, Attack on Titan, and Land of the Lustrous. Now when I say weird, I mean to the point that it doesn't look natural anymore, You can't talk about bad CGI without mentioning Berserk (2016), the legendary dark fantasy manga that currently holds #1 on MyAnimeList, an amazing manga that has inspired tons of games and other anime, unfortunately, has an anime adaptation that can't even be compared to the legendary manga it's based on.
The opposite of rushed anime, filler arcs squeezed in between the main story. A mini-series to give the author time to progress the story. Examples are most shonen anime like Naruto, One Piece, and Bleach. Though this is one thing that you're going to have to get used to because this happens quite often in anime, fillers are usually made when there are currently no more chapters of the manga the anime is adapting. Though not all fillers are boring, like in Naruto: Shippuden where Kakashi finally shows his face. There are fillers that are worth your time and can be entertaining but it's best to stick to the main story.
Unnecessary Fan Service
Although there are people who enjoy it, excessive and ridiculous fan service can really ruin the flow of the story and ruin the plot, Ecchi shows like Food Wars and Highschool Dxd are an exemption because these shows really focus on being a fan service anime. but for what it's worth, those shows do have a decent story. An example of a show with unnecessary fan service is Fire Force. Tamaki Kotatsu, a character in Fire Force, has been the topic of some controversy. Readers have made a bit of an uproar when it came to her character. Things like her sole purpose in the show is to be a fan service character.
The majority of these are in harem anime. Where 5-6 gorgeous girls all happen to fall in love with a dull guy. Bland MCs are usually unrealistically dense and have the signature Shinji Ikari hairstyle. They don't stand out, they're better off a side character, but for some reason, amazing girls are willing to throw away their pride just to be with the protagonist.