If you bought a M1 computer 2 weeks ago it is shipped from China with OS : 11.1 (not 11.0.1) and Also 2 weeks ago firmware version is "6723.61.3". Also if you plugged in that computer, it tries , if you let it, to immediately install a giant new OS update. The update removes ability to run old sideloaded iPhone apps on m1 macs, so some might stick with 11.1 (not 11.0.1) for a while before letting apple force 11.2.1
THOSE HACKS IN THAT LINK might not have value, if they only work on 11.0.1 version of older OS
spc50 said ()
In b4 Apple fanboys soft sell this as no big deal :)