> If you're on macOS, feel free to try Ctrl-E, Ctrl-W, or Ctrl-U in your browser's address bar right now
Most browsers I've used close the current tab when you press Ctrl-W. Actually, the terminal emulator I use, Alacritty, also does this, and most file explorers that have tabs also do. Iirc even windows explorer does this now, but it's been a while since I've actually used windows.
>Actually, the terminal emulator I use, Alacritty, also does this
This can't be right. I use ctrl+w all the time, and occasionally use Alacritty. I'd notice if this shortcut closed my terminal window (it's extremely annoying when I use a web-based ssh, because I have this shortcut deep in my muscle memory).
Most browsers I've used close the current tab when you press Ctrl-W. Actually, the terminal emulator I use, Alacritty, also does this, and most file explorers that have tabs also do. Iirc even windows explorer does this now, but it's been a while since I've actually used windows.