I apologise if someone already said this or something similar alreasy, i haven't read anything but the first comment from op
This is just my opinion, i'm not trying to debate or anything, it's just how i personally see it
It is and will be an issue for everything imo
Before the internet only a few people were "allowed" to voice their opinions and ideas, with the internet the possibility raised drastically, to the point where basically everyone can share something, including all or lots of the ideas bottled up offline until they were able to tell others about them
We're in the "golden age" (meant as the one with the most likely best ideas) of creativity, be it books, movies, series, games or whatever, because more people have more ideas and the internet gives the opportunity for everyone to share them, but after a while there is only so much you can do if you want to be original, making something that was never made before will be harder and harder because we're all different but what we see and come across with is generally similar, what we think and create is also based on what we experience (like another game for example) so there will be influence from others
That is completely fine, but good, quality products will get more and more scarce, there is one way to make it easier to make something good though: passion
If you truly put your all into something, that something will be special, unless it's a copy, you can do as much as you want, copies will almost always be awful
Brief example:
I watched a series recently (from) which is very similar in style to a mix between another famous series (lost) and part of a famous anime (attack on titan, only before opening the door though)
The series is insane, it might be me but i love it, i can't wait for it to continue, and even though it's similar to other series it's still different, the actors are great, the story is great and handled beautifully, the setting is amazing etc... Not everyone will agree with me, but even if it's basically a mix it's still really good, with passion there is a chance to create something great, but without it, good luck, having an original idea in a few years will be almost impossible
Also because: people liked "x"? Ok i'll make "x" v2 or "x 2.0", because that's what makes them money, so most of the stuff we get is either low quality or a clone, because they want to make money, not good products
TL;DR: it's normal, don't worry too much about ir