Recently, I started a for-fun worldbuilding project that takes place in an alternate 1990s, where the Cold War is still going on but the world has advanced in various ways while maintaining cassettes, cartridges, and so on. Retrofuturistic cyberpunk. The vibe is very much 1980s-1990s action sci-fi movies - think Demolition Man, Judge Dredd, and War Games.

I decided I wanted to make a neat map of this world, using an Earth Map. But I am struggling to conceptualize how this would even look or how should I present it. One part thinks "just get a wikipedia map and adjust it to 1990s in your world, but that seems really boring. I want to try and make it look old, techno wise but I am struggling to visualize or find examples (probably because I don't know what search words to use) of an old computer screen with scanlines and pixelated graphics that still looks good and details information.

Any advice or is this a lost cause?

I have a pretty powerful PC and I've started using GIMP and Paint.net, no photoshop.