When you want to mix camera and cell phone, what do you expect.
There is no such cheat sheet. It all depends on the knowledge of the photographer. You need to take some classes in basic photography.
Yes, I leave them in the camera. I want my camera to be ready anytime, any place. You should learn about every type of battery and there pros and cons.
Shoot the way you want to shoot. If you do not like the A mode, don't use it. If you do not understand it, read and learn it. The photographer takes the picture, not the camera.
Call Adobe and they will help with the correct answer.
Learn how to use lighting and DOF.
The focal length of the lens does not change and can not change. Attempting to explain this is very difficult. Take the lens and shoot some photos with it and look at the results. Go on the internet, search the subject, and you will find drawings explaining the what happens.
When shooting in manual mode, nothing changes. You, the photographer, set the camera for the settings you want.
I shoot A & M most of the time.
Sounds like " The photographer takes the picture, not the camera".
And these picture takers call them selves photographers.
Are you a photographer or a picture taker?