This 'jk' and 'kj' mapping works only to get out of the Insert mode. But it does not match the full capability of the original 'Escape'. - How do you escape fr

This 'jk' and 'kj' mapping works only to get out of the Insert mode. But it does not match the full capability of the original 'Escape'. - How do you escape from visual mode to normal mode? - How do you ensure that your abbreviation gets expanded when you escape from insert mode to normal mode? - How do you escape from operator-pending mode to normal mode? With this mapping, if you press 'd' to delete something and then change your mind and decide to return to normal mode, you are forced to use the original 'Escape' anyway. If you happen to press 'jk' due to habit at this time, it is going to end up deleting lines. For these reasons, I thought to have a clean mapping of another convenient key (such as Caps Lock) to Escape at an operating system level, rather than trying to make Vim treat some other key as Escape in certain modes.