It’s not only 2D games. Super Mario 64 looks terrible on a modern panel imo, and it still looks great on a CRT, as if the CRT has some kind of texture filtering lol. Not only the jagged edges are gone, but the textures look smoother too. You don’t want to see low res textures in perfect contrast, brightness and sharpness lol.
Some games used that bleeding effect to create special effects lol. I forgot which game, but one game has a character having glowing red eyes because of the bleeding of the red pixel. On a LCD, it looks like a red square lol.