If you were to strip unwanted code from a Universal App, would it still pass Big Sur’s strict security checks?
lipo
Can you strip all Intel executables from a Universal App to make it even smaller? What benefits might there be in building an app for Big Sur only?
Will stripping executable code for an unwanted platform stop an app from working? What savings are to be gained?
How easy is it to read the start of a Universal Binary and work out whether it supports Apple Silicon?
Apple gave us a big clue in the command tool lipo, which underwent complete overhaul in Mojave – a clear signpost of where it is heading.
How testing Mach-O files to see if they’re Universal Binaries gets complicated – and probably isn’t as reliable before macOS 10.14.
How can you tell whether an app on your Mac is a Universal App, or only support Intel processors?
The Eclectic Light Company 