APPLE INSIDER
Apple with the latest macOS Big Sur release has blocked sideloading of iOS apps on Macs running M1 chips, again preventing users from installing iPhone and iPad apps on its desktop operating system.
The tech giant first constructed hurdles against sideloading in January with server-side protections barring manual installs of iOS and iPadOS apps. Lifted four days later, the ban was expected to see reinstatement with the release of a subsequent macOS update.As noted by 9to5Mac, the latest version of Big Sur 11.2, issued last week, again activates the server-side block. Further tests show the sideloading policy extends to the current macOS 11.3 beta.
Source: APPLE INSIDER