Still, there are many more! If you use special characters often, consider familiarizing yourself with these shortcut symbols ...

Along with the standard letter keys on a typewriter, computer keyboards have keys for cursor movement and entering commands as outlined below. See keyboard. The Enter key ends a line or paragraph ...

TL;DR: Apple has updated the mute key on the MacBook Air M4 to feature a speaker symbol with a strikethrough ... it was an oddity with the keyboard, and a slight pitfall for some Mac owners.