I can find a bunch of answers from pre-2014 about removing the launch/splash screen by removing the line \"Launch screen interface file base name\", but in this project on X
Simple way to remove lunch screen in IOS (react-native)
Goto project IOS directory
IOS -> Project Folder -> Base.iproj -> Open LaunchScreen.xib file
then remove < View > .... < / View > tag from file and save file