It's like you've never heard of archival or how to keep data safe, protected, or backed up.

Also intentionally missing the valid point when compared to physical items just shoots yourself in the foot for any further arguments.

I didn’t know IKEA made video games?

They don't, they make furniture. You clearly don't understand metaphors.

When they go out of business you can’t download even if you do or don’t have a license.

If Ikea goes out of business, you can't buy their products anymore and the ones you do have you need to protect and make sure they don't degrade. Your argument is true for every single product, digital or physical.

The games from GOG don't have any DRM so you can very easily make copies of the game and safely store them elsewhere, even on new computers.

Games that do have DRM lock you down to verify that you're allowed to play their game, which severely limits how you can use your own product. If that game publisher or developer goes out if business than you can't play the game that you already have, even if it's kept "pristine".

People who bought The Sims 4 couldn't play their offline game because the DRM stopped them, meanwhile people didn't buy the game were free to play it when they wanted. The legitimate buyers of the game were punished simply because of DRM.