This worked like a charm for a year:

On my iMac, click “Share Screen” on my MacBook Pro running macOS Catalina (10.15.7). Whether in fullscreen or not, all the Command+Tab keystrokes switched between the windows. Had to use the mouse or something else to switch to host windows on the iMac.

Then maybe when running update to macOS Big Sur (11.1) this changed. Pressing Command+Tab always switches back to the host instead of switching between screen sharing windows?

The MacBook Pro is still on macOS Catalina for a while.


2 Answers 2


This question is a bit old, but those who wandered here like me and couldn't find a solution anywhere else, you can go to:

System Preferences > Security & Privacy > Privacy > Accessibility

Then you can add the Screen Sharing app which is located in:


Then you should be able to Command + Tab in the target host again.


Yeah, this somehow went back to 'normal' .. not sure what changed :-)

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