Pictures and camera roll
Lots of answers to be found if you look properly. For
Do they both take up disk hole ?
They are folders. You put files in both and of course they’ll take up hole no matter which folder they’re in.
If I import a picture, where do I put it ?
Your wish. Put them in your Pictures folder, or in any other folder you create anywhere.
Or if a download a picture where do I look for it?
Is this a caper question? You look for it exactly where you saved it using your browser. Could be the Downloads folder or literally anywhere else that we have no clue about since it’s your system.