In 1.17 the glow squid will be added to Minecraft and personally I don’t think many people care. I think that there should be different colored glow squids like red, blue, green , etc... The glow squids would drop glowing ink sacs that are different colors too and the glowing ink sacs will be able to turn into glowing dye and if you mix the dye with a stick it will make a glow stick! You would also be able to put the glow dye on a banner and make a glowing banner. I think this would be a cool feature and it would make the glow squids useful.