Android Studio 4.1.1- MacOS BigSur - Freezing Problem in FullScreen

The problem is that when macOS is set to prefer tabs, Android Studio 4.1.1 on macOS Big Sur also opens things like branch settings in tabs instead of windows.

To fix it, you can prevent those tabs only in Android Studio.

Open Terminal and run this command:

defaults write com.google.android.studio AppleWindowTabbingMode manual

Now Android Studio will use windows again and not crash.

Solution was found on reddit https://www.reddit.com/r/androiddev/comments/jtbl4m/has_anyone_updated_to_macos_big_sur_and_is/gc8pfhg/?utm_source=reddit&utm_medium=web2x&context=3

It's a known issue in Android Studio

As per Developer page -

Android Studio freezes on macOS Big Sur. On machines running macOS Big Sur, Android Studio 4.1 might freeze when you open a dialog.

To work around this issue, do one of the following:

• Go to the Apple Menu, select System Preferences > General. In the Prefer tabs when opening documents option, select "never". Then restart Android Studio.

• Upgrade to Android Studio 4.2, currently available in the Beta channel.

Otherwise, wait for the Stable Android Studio 4.2