How to solve the problem?

System Preference -> Keyboard -> Shortcuts -> App Shortcuts

Then add two entries

  1. Enter full screen
    • Application: Google Chrome
    • Menu Title: "Enter Full Screen"
    • Keyboard Shortcut: Ctrl+Cmd+F
  2. Exit full screen
    • Application: Google Chrome
    • Menu Title: "Exit Full Screen"
    • Keyboard Shortcut: Ctrl+Cmd+F

Then the mapping changed and the full-screen shortcut works on my Mac.

Why does this happen?

When I opened chrome on the problematic mac, I found that the shortcut for Enter full screen under the View tab is fn+F. And I happen to have another Mac on hand, while the same Enter full screen shortcut is Ctrl+Cmd+F.

The strange thing is that on the well-working Mac, Ctrl+Cmd+F is the default value. It seems that some actions modify the corresponding mappings to cause this problem...

Answer from sphpmp on Stack Exchange
Discussions

Turn full-screen mode on or off - Google Chrome Community
Skip to main content · Google Chrome Help · Sign in · Google Help · Help Center · Community · Google Chrome · Terms of Service · Submit feedback · Send feedback on More on support.google.com
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shortcut - How to full screen chrome tab on a mac - Ask Different
Bring the best of human thought ... at your work. Explore Stack Internal ... I recently switched to a Mac M1 from Windows, and I'm trying to full-screen a Chrome tab so you can't see the search bar, bookmarks bar, and all the other tabs. On Windows, I'm used to pressing F11 and it does just that. I've tried using Ctrl+Cmd+F and this doesn't achieve what I want since you can still see the search bar, etc. at the top. How do I do this on Mac? (Preferably, there's a shortcut for ... More on apple.stackexchange.com
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Keyboard shortcuts don't work when using Chrome in full screen mode
Describe the bug I have set up a shortcuts to run applescript by pressing Shift + F7 and Shift F8. If I'm running Chrome in full screen mode, the keyboard shortcuts don't react. When I navigate to another space or disable full screen, the shortcuts work. This seems very similar to this bug: ... More on community.folivora.ai
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August 5, 2019
Not going full screen in chrome
Hit F11 or fn+F11. If that doesn't work, View menu → Enter Full Screen (or cmd+ctrl+F). btw the regular green button fullscreen on mac is supposed to show the menu bar, that's just how macos works More on reddit.com
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October 17, 2025
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If I full screen any video on Chrome, I cannot full screen the Chrome window properly after that. If I go full screen on the Chrome window, the top controls are all gone and there is no way to get them back without exiting full screen.

Here is a video that explains it : https://streamable.com/7gjx3

CHROME VERSION : 69.0.3497.100

OS VERSION : Mac OS X: 10.14.0

Any idea whats going on?

edit: I thought it could be something with the flags I enabled, so I reset them all. Still happens.

edit: I did file a bug about 2 weeks ago but I have no way to check its status or find out what happened to it.

edit: there is a proper bug filed for it (https://bugs.chromium.org/p/chromium/issues/detail?id=879158%C2%A0). Fix is in beta eventually getting to stable.

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