What is the 'best practice' in shutting down the Mac OS?

Before I go to the Apple icon to 'shut down' I close all the apps that have been in use and all the pages of those apps that are open.

Is this necessary?

Might I just as well, with all the pages and apps that have been used, just go to 'shut down'

and it would all be, just as good.

I notice that if unintentionally I leave a draft in the dock form the Mail app for example,

then the shut down takes longer. Is that the only consequence, that the shut down would

take longer -- or is it harmful is some way, not, to close all the apps and the windows that

are open, before choosing 'shut down'?

Thank you for your time and consideration.

Using a MacBook Air (mid 2013) with:

Mojave 10.14.2 OS (and Mail 12.2; Safari 12.02; Photos 4; Pages 7.3)