I'm about 2/3rds through the story in Spider-Man (is there even a real 100% checker? The map % seems to just be the main story campaign?), and I've got a love/burn-out relationship with the game.
There's too much side shit and it's too inconsequential and underbaked. For every good 15-20 min main story mission I do, I end up doing 2-3 hours of mini-game filler between each one on the way to the next because I'm that kind of person that if I see an icon on the way to something I stop by and do it. Whether I'm doing Taskmaster fight/bomb/stealth/drone challenges, Crime stops, Demon/Fisk bases, Research station missions, side missions which are usually just about as deep as a research station mission (The Tombstone sidequest w/boss fight was the only real quality one so far), pigeons, black cat hideouts, backpacks, landmarks, etc...
and there's still 3 locked side stuff categories still
This game reminds me that I bailed pretty early on in Sunset Overdrive, Insomniac's first attempt at an ubisoft sandbox game because it was super repetitive and felt like Insomniac wasn't that great at this concept. Spider-Man is very improved, and I'm not going to say any of it is bad, but it just feels basic, fillerish and forgettable outside the main story.
Howlongtobeat.com says the game is like 15 hours main story, 25 hours doing all the side stuff, but I don't know if I buy that. The side stuff is like 90% of the game content/time and I feel like I'm 20+ hours already and the game is going to be more like 40-50 hours because of all this filler.
For the sequel, either the Miles expansion or Spider-Man 2, I'd really like for them to put in like 1/2 the amount of side stuff but make them more unique and developed beyond a few min mini-game. I feel like the better sandbox games do that these days and Spider-Man is coasting like a game from a decade ago in sandbox design.
Fwiw, I have zero issues with straight up collectibles on the map. Backpacks/Landmarks are fun just like getting feathers in AC or whatever. I like having little collectibles you grab while moving from one thing to another.
If Miles is more of the same, I may just buckle down and stick to the main story only in that one. Also for the DLCs for this game I might just do that as well. I'm just so burnt-out on the side stuff.
The side-stuff also pays shit xp and the main story missions give huge xp so it doesn't even seem like you're getting a big benefit outside the collection coins you need for suit unlocks, gadget/ability power-ups.
And people at launch seemed to complain a lot about the forced Miles/MJ stealth sections, but so far I have zero issue with them. They're super linear scripted & easy stealth bits with a nice budget and they're a fine diversion from the other three dozen mini-game scenarios.