γραμμη καταστασης σε κλειδωμενη οθονη

There are some articles that seem to be along the lines you are asking about.

Although not translated in Greek:

•How to customize your Lock screen on iPhone and iPad | iMore

https://www.imore.com/how-to-customize-lock-screen-iphone-and-ipad

"Tap Set Lock Screen if you only want to change the Lock screen wallpaper, or choose Set

Both to change the Home screen wallpaper as well. How to set Auto-Lock time You can turn

the screen off on your iPhone or iPad at any time, but by default, it'll turn off automatically

after two minutes to save on power..."

(This may not be all that useful in review, after placing image from translate site!)

Sorry there wasn't pre-translated Apple page, a support article with several different languages.

The Apple articles didn't come up in 'duck-duck-go' search result page though. Hope its useful!

Another item didn't seem as useful, but here it is anyway:

How to Get a Clean Status Bar for Your iOS Screenshots

https://www.tekrevue.com/tip/iphone-screenshot-status-bar/