I have compiled commands in this topic that provide ease of use for MacBook computers with the MacOS operating system and can be used by beginners.
General MacBook Shortcuts
Making an application full screen (the same code is used to exit full screen): Control + Command + F
Completely closing the application and quitting from the Dock: Command + Q
Opening a new tab in the browser: Command + T
Closing a tab in the browser: Command + W
Refreshing the page in the browser: Command + R
Taking a full screen screenshot: Command + Shift + 3
Taking a screenshot of a selected area: Command + Shift + 4
Spotlight search (allows you to search for files etc. on your MacBook) shortcut: Command + Space
Opening Finder with a keyboard shortcut: Option + Command + Space
I will update the topic as I learn new things.