Did you know you could not only take a screenshot on your iPhone, but can also take a scrolling screenshot (with iOS 14 and later)? You can.
How to take a screenshot on your iPhone
Take a screenshot (press the side or top button and volume up button at the same time).
How to take a scrolling screenshot on your iPhone (you need to have fast fingers)
Take a screenshot (press the side or top button and volume up button at the same time)
Tap the preview in the bottom left corner before it disappears.
Select the Full Page option in the top right corner.
Now you can preview all the pages, use markup, etc. before saving. Or you can tap the crop icon next to “Done” and edit the part of the Full Page you’d like to save.
Tap “Done” or click the share button in the top right.
FWIW the screen / full page option is unavailable in iOS 16.5