Every single electrical item on the planet stops working, because every generator, turbine, and motor immediately stops running.

Car batteries never charge, starter motors won’t turn, and any hall effect sensors cease to operate.

Kitchen floors would be covered with souvenirs and notes.

Society would collapse

People couldn’t use their MagSafe iPhone accessories and society would crumble within days (You can’t tell me I don’t know what Vietnam was like!!)

generally speaking, mass chaos and hysteria and then nothingness.

if we exclude the possibility of “magic” doing it, and instead focus on the realistic causes of a loss of magnetism the chances for just magnets to be directly impacted are low.

that is, the strength of phenomena that would be required for all magnets in the world to cease functioning it would also likely cause the magnetic cohesion of molecules and atoms to break. this breakdown at the atomic and subatomic level would cause a chain reaction where we would both cease to exist and explode with enough energy to destroy the universe.

if any atoms of you survived at all, they would be flung to the outer reaches of the universe in seconds only for the entirety of the universe to be sucked into the void such an explosion caused. it would probably be something akin to a big bang.

I’m no expert, but I feel like magnets losing their magnetism would also cause electricity to stop working.

The earth is a giant magnet.
You’d be burned to a crisp by solar winds ;)

Rather than listing all of the ways modern life and society would collapse it’d be easier to just say this:

Your ability to understand the world would in an instant be limited to the people that immediately surround you and you’d better quickly think of a way to find a clean water source, some land, grab an “Agriculture for Dummies” book, and some form of weapon to defend your new homestead with your new tribe.

my hard drives…

On the bright side we could stop wondering how do they work.

All the shit would fall off of my fridge.

Depending on what counts as a “magnet”, the loss of magnetism could destroy the universe.

The Earth’s magnetic field is gone and we all die.

If you mean a complete absence of the electromagnetic force, then chemistry and physics are going to get very disastrous for us very quickly

Are we including electromagnets? If so, an awful lot of motors would suddenly just not work anymore.

You would hard pressed to learn about the details without electricity and communication networks.

A lot of kids’ art on the ground