Code signing and associated warnings are significantly different from fully prohibiting the execution of unapproved code, I'm not sure why people struggle with

Code signing and associated warnings are significantly different from fully prohibiting the execution of unapproved code, I'm not sure why people struggle with the distinction. Windows has been doing this mostly the same way for literal decades. iOS has a full sandbox which would apply even to "side loaded" applications, which makes the arbitrary constraint even more ridiculous as a "for your own good" measure.