As a beginner on my first game, first jam and first time using itch.io I really think those elements like camera movements, particles, and things like that are very difficult to make in limited time like from start to finish of specific dates of a jam. I could imagine it may be hard even for people who might not be beginners, let alone beginners.
I don't know if they may even be details that could result in even not having a submission at all!
However if there are many people like you who may be looking for these elements for even a jam game and even considering it in their actual score, I guess I might check more on how such elements may be introduced even in such a limited time. Or how the idea itself may tend to be in a way that may not invite as much scrutiny even from someone like you into these specific elements.
I feel like you might have a pretty high expectation of a game make in such limited time. Maybe it's OK if you do, but just reading such a comment may really get me thinking a lot more about a lot of things. Like what a jam game perhaps should be, even coming from total beginners. And how this may impact how someone like you might perceive it if it's done in both a more optimal way and also still in a way that has a nice result for the player.