Did Dr. Strange's final spell have physical effects?

Question

At the end of Spider-Man: No Way Home (2021), Dr. Strange casts a spell to make everyone forget about Peter Parker. This is described as a memory-affecting spell that would cause literally everyone to no longer know him, so that it would be as if he had never existed.

However, there is plenty of physical information about Peter Parker out there — all the news broadcasts identifying him as Spider-Man, Flash's book, probably hundreds of cellphone videos of him from classmates, photographs, etc.

Do those things still exist, or did the spell also somehow erase them as well?

If they still exist, then a large number of people will quickly know about him again, but if things like that were removed there are other problems....

Answer 1

Documents and information have been 'magically redacted'

In an interview with Variety, screenwriters Erik Sommers and Chris McKenna discuss the fallout of Dr Strange's spell:

Since Holland’s Peter still exists in the MCU, his decision has a litany of wide-ranging — and persnickety — problems attached to it: Does this mean all records of him are gone too? Does he still have a social security number? Are the photos of MJ and Ned gone from his phone? And so on.

Asked about these questions, McKenna and Sommers grimace.

“This is the first time that we’ve ever discussed this,” Sommers deadpans.

In truth, the filmmaking team talked at length about the implications of the anti-Peter spell and how the movie could address them. “We were like, do we do a ‘Back to the Future’ kind of thing where you see him fading out of photos?” Sommers says. “Does he still have a driver’s license or a passport? It just led to more questions.”

So they punted. “We decided, let’s try to do it in the most satisfying way and just focus on the emotion of it,” Sommers says. “And then if people have questions about some of those details that didn’t get answered here, we’ll answer them hopefully in another movie somewhere down the line.”

“Obviously, some sort of magical redaction has occurred,” McKenna adds. “At the end of all this, we didn’t want a lot of people trying to do magical math in their head.”

Pascal suggested looking to the 1978 Warren Beatty comedy “Heaven Can Wait” for a solution. “People had these experiences, but they start forgetting the person they knew, but they were still affected by the events that happened,” McKenna explained.

(My emphasis)

Answer 2

Our best guess is, yes.

There's no official word on this, but from the end of No Way Home,

J. Jonah Jameson says that it's been some time since the Statue of Liberty battle.

That much time is enough for a dedicated person, especially Jameson or a Spider-Man enthusiast, to discover the video that Quentin Beck's team released at the end of Far From Home, or Flash Gordon's book, or any related material. So if that material did exist, it would have been found by then.

Strange's spell didn't make everyone forget that Parker was Spider-Man, it made everybody forget Parker, period.

This means that anyone who knew Parker forgot him. And it stands to reason that any material on Parker - this includes census records, Social Security funds, and all material that Peter's friends and his acquaintances had about him.

So, though there is no official ruling or material on it, it's safe to say, all physical and stored material on Parker has been destroyed or removed to some pocket dimension in Kamar-Taj. (Perhaps food for Dormammu? Reading material for Kaecilius and his Zealots?)