According to the menu, the shortcut is Cmd + Shift + X, but it doesn't work.
It works in Safari, but not Chrome. I tried it on my old Mac (a few OS versions behind) and got the same result.
I even tried Incognito Mode (no plugins?) and it still doesn't work.
Also doesn't work in Google Sheets.
So it seems like Chrome is eating the shortcut keypress somehow? How could I fix or debug this?