Guys, as we all know, there is a crucial issue can happen for some iPhone users where the icons on their iphone screen are missing. The icon names may or may not appear, or the icon badges may or may not appear, but the icon itself is usually gone.
Hey! Who can help me? My iPhone apps icons are missing!
1: Reboot iPhone
The first thing you’ll want to do is reboot your iPhone.
A hard reboot is often the easiest thing to do, which is accomplished by pressing Volume Up, then Volume Down, then pressing and holding the Power button until you see the Apple logo show up on screen.
Sometimes this alone can fix the missing icon problem, or the blank dock issue.
If the iPhone starts back up and is still missing icons, the next thing to do is to clear up some storage space on the iPhone itself.
2: Clear up storage space
Go to Settings > General > iPhone Storage and locate apps, videos, or other large data hogs, and remove them from the iPhone.
Make sure the iPhone has at least 1GB of storage space freely available.
Then reboot the iPhone again by turning it off and back on.
At this point the icons should be back on the screen as expected.
What’s going on here? Why does this happen?
Having personally encountered this issue several times with my iPhone 11 running various versions of iOS 14.6 and iOS 14.x, it’s a bit of a mystery as to what is going on. However, because clearing up storage space and a reboot seems to fix the problem, it could simply be a quirk of what happens when iPhone has run out of space and can’t figure itself out. In my experience, the phone ends up like this in the morning after the iPhone has been plugged in and unused over night, though it’s unclear what if anything that may have to do with why it happens.
It’s well known the iPhone starts dramatically underperforming and misbehaving when the devices storage is full, sometimes deleting photos, mail, apps (though this is a feature called Offload Apps which is separate from the issue mentioned here), and other data from the device. Or perhaps your contacts are seemingly lost, showing phone numbers instead of names as they should. It’s not always related, but try and always keep some storage space available on your device so that it performs well.
It appears that variations of this problem have shown up on Apple discussion boards for a while, so if it’s a bug then it may been longstanding and yet to be addressed. Nonetheless, try freeing up some storage space on your device, and then rebooting, it should work and the icons should be restored.
Sara Sara 
Tech Elucidations 
lingyu 
Sean Lee