I don’t think that there is a single person who likes Vim’s Ex mode. And keymapping used to trigger this shortcut, Q regularly gets occasionally triggered.

A lot of people unmap it to prevent accidentally entering Ex mode, but for myself I found a better solution:

nnoremap Q :quit<cr>

This keymap:

• Lets me close any window,including help pages, Fugitive windows or even Vim in a consistent way
• Feels very natural, easy to remember
• Easy to trigger

Since I’ve mapped it, I use it all the time. Give it a try, maybe you’ll find it as useful as I do.