As they’re built on such well-established tropes and character beats, it’s probably possible to guess 90% of the story up front. Also these films are so huge that the actual plot isn’t really that important compared to everything else.
But I certainly hope Ned doesn’t meet his demise in Far From Home. He’s such a loveable character, though the “Missing Mission Control” trope is well manifested in the superhero genre
I'm probably a little biased in that Spider-Man (respect the hyphen, darnit!) is my favorite super-hero, but Homecoming is just a really nice and charming 'coming of age' movie that even people who aren't comic book/super-hero fans would enjoy if you like a little bit of Die Hard with your Ferris Bueller--I appreciated that Homecoming showcased far more of Parker's raw intellect and creative thinking than what we've gotten previously.
I thought the point of Peter Parker was that he was a friendless loner.
PD: My only source are the Raimi films.
"Spider-Man into the Spider-Verse" is an alternate-reality version (where SM is a black/latino teenager) in animated form. Somewhat surprisingly, it's also qualitatively better than any live-action version to date. It will probably get a sequel, again in animated form, in the next few years.
They're not connected to each other, beyond the two live action movies, and none of the above are connected to the Raimi Spider-Man movies--if that helps your frame of reference.