I know it has become a bit of trope that 30fps is closer to 24fps; and therefore it is "more cinematic". But this is one of those games where it holds absolutely true for me.
While I am in absolute agreement that 60fps feels more responsive and has less undesirable judder; and I do prefer 60fps for many game types, (first person, survival, sim, arcade and many other third person games etc.). Spider-Man just feels better to me in 30fps in terms of a sense of momentum, in terms of the visual believability, how the assets appear and just my overall emotional response to the game.
The heightened sense of reality can bring about a sense of mundanity that makes the experience feel less fantastical. Just as in movies where most scenes at HFR break down and literally come across as sets and actors in dress up.. In certain games that are trying to be conveyed as intrinsically cinematic or epic experiences, the more rudimentary nature of assets becomes more apparent with increased temporal resolution.
Insomniac also have exceptional motion blur; and the 60fps modes do not appear to have appropriately adjusted shutter speed for it. With this also comes that sense of momentum: 60fps is giving me more information but it feels mundane, but at 30fps I feel like I have weight and I'm swinging faster. The motion is implied within each frame and my brain is filling in the gaps to create something greater than the sum of its parts. Whereas at 60fps I'm just getting my current position.
Again, I'm totally in favour for 60fps for most other games as well as being an option for games like this. But, for games like this..... that present the character/s and the world to you as one in a somewhat cinematic or epic manner as opposed to presenting the world to you as if you're the character, then I hope making a 30fps option available remains the norm (just as ND did with the recent TLOUII PS5 patch, you can choose either in the menu).
While of course movies and games are different things, there is obviously some cross-over, particularly in games such as Spidey. But one eg. I'd also like to give in respect to movies and in a different regard (spatial resolution and shutter speed vs temporal resolution) would be Mission Impossible: Fallout. There's a few "LIEMAX" scenes near the end shot on a Panavision 8K digital camera at 1.90:1 (as opposed to the 35mm Film 2.35:1 scenes elsewhere). Now from what I can gather these are meant to make the scope feel bigger, to make the action scenes more clear and epic. In reality, these shots overload my sub conscious with visual information (high frequency detail, smoother motion) and subsequently they felt more mundane, too real and removed me from the movie; the fixed shots of Cavill in the chopper just felt like someone stuck a high res camera in a chopper on a documentary.
Don't get me wrong, I'm favour of all kinds of approaches (and especially options for the end user) across different content of different types, but I think it's important to take into account the visual texture of the medium in addition to the content and how it impacts peoples' emotional response to it. And of course, when it comes to games and if it is 30fps, it has to be rock-solid with tight frame-pacing, no tearing and as little latency as possible.
What I don't like is when a game is originally released in 30fps but is updated for new platforms and is only available in 60fps. Days gone did this on PS5 and while I personally do prefer 60fps for it, there should always be an option to revert to the original fps. I can't recall if it was the The Nathan Drake Collection of The Last Of Us Remastered; but one of these released on PS4 with only 60fps available and I absolutely hated it, the texture of it not only robbed it of the feels but last gen geometry stuck out like a sore thumb.
So yeah, to summarise: I think Spidey on PS5 just feels better at 30fps, greater sense of momentum, greater emotional response, more aesthetically pleasing image and more artistically in keeping with the content. And I personally prefer to trade-off some responsiveness and visual comfort in favour of that.