Did you know that in Spider-Man: No Way Home?, in the scene where Doctor Octopus first encounters Tom Holland's Spider-Man, when he attacks Peter Parker at the vulnerable part of his suit, the nanobots protect him by closing the hole?
I always thought it was the dagger that cut Peter's tie. But actually, it was the nanobots themselves that cut it before the dagger could hit him!
The scene was really fast, and it was hard to notice at the time.