specific games like Minecraft I think it’s nessicary, other games such as call of duty which insists on having one launcher manage all game installs I don’t think is.

Imagine trying to handle all the different minecraft installs from the main screen, you would need to launch Java, load a Minecraft game, load a profile, close the game, open the game with the new profile settings and then hope it launches. This setup is very helpful, but I agree most games it is not helpful at all