In Excel there are some Alt shortcuts like:
- Alt+E+S+V: paste special value only
- Alt+I+R: insert a new row
In Google Sheets, they can also be used. When I press Alt+I for example, I see this popup at the bottom:
I know that I can toggle compatible key shortcuts in Google Sheets like this:
With this turned on, I can use the above-mentioned Alt shortcuts however, on some of my computers (Windows 10) turning this option on or off has no effect and the Alt shortcuts listed above cannot be used. There is nothing special about this computer: it's running Windows 10 latest version, latest Chrome.