There are a number of reasons why you'll need to know what version of Apple's iOS your iPhone is currently running. Finding out is as easy as:
The value specified in 'Software Version' tells you what version of iOS you're currently operating.
Moving apps around on the iOS home screen has always been done with "wiggle mode". Once the icons are wiggling, they can be rearranged or deleted. Apple changed the process starting with iOS 13.
To delete apps or reorganize the home screen using iOS 13 or later:
Instead of long pressing an app to get it to "wobble" and then going through all of your screens and folders tapping the "x" on apps you want to delete, you can accomplish the same thing much more quickly via the App Store. Just open the App Store, tap on your profile/account button, then scroll down through your recently updated apps. Swipe left on any app you want to delete and you will see a Delete button.
The dock at the bottom of your iPhone or iPad's Home Screen is where you keep (or should keep) apps that you use frequently, because the dock is always on your screen, regardless of which page of apps you've swiped left or right to. It only fits four apps and most of us use more than four apps on a regular basis, so fitting more on the dock would be useful. You can accomplish this to a degree by using a folder in your dock. It might not be worth it if you only have a couple Home Screens worth of apps to swipe through, but it probably is if you have many many pages of apps and folders.
You can drag multiple apps at once in iOS, which can make organizing a much quicker process. Instead of tapping and dragging apps one by one into a folder, you can stack many of them and drag the stack. To do this, long press an app until it "wiggles," then start to drag it somewhere. While still holding onto it, tap another app that you want to stack and it will automatically add to your stack. After the second one, you have to double tap any additional apps to add them to your stack. A number will appear on the top icon indicating how many items you have in the stack.
