Are all Loading screens needed?

I am comparing a project in Xcode

1. From Fusion
2. From External.

For Fusion Xcode:

I noticed that only a few game icons are using
and for the Loading screen, everything is used


For 3rd Party Xcode project.
All Game icons are used
And for the loading screen, only 3 of them are used.


So the question is..
Do I need to fill out the missing icons, and do I need the loading screen for all the format ?

(which could save between 1-5 Mb in filesize)

you could get away with using a black screen for the quick load screens...

Are the load screens and quick load screens? (I couldn't see that in Xcode)