PS4 console data you can back up
Backing up your data regularly is a great way to ensure that important data is saved. You can back up the following types of data saved to a USB drive.
Games and apps
Saved data
Screenshots and video clips
Settings
All user data saved on your PS4 console (excluding trophies) is included in the backup data. When you restore your backup data, your PS4 console is reset, and all data saved on your console is erased.
If you want to return data without restoring your console, use USB extended storage or cloud storage.
I tried copying game data when we were replacing our PS4 hard drive, but it just caused a lot of problems (with games having to “verify” the installation when launched, which was a very lengthy process, probably longer than just re-downloading it would have been; I don’t know what it was actually doing). We were able to preserve save data, though.
I have backups of my games on a PS4, which is air gapped (because the USB interface took a shot of lighning and no longer works).
I have been able to restore them and play games/saves on this console.
Here: https://www.playstation.com/en-us/support/hardware/ps4-back-up-and-restore-with-external-storage/
FTA:
I tried copying game data when we were replacing our PS4 hard drive, but it just caused a lot of problems (with games having to “verify” the installation when launched, which was a very lengthy process, probably longer than just re-downloading it would have been; I don’t know what it was actually doing). We were able to preserve save data, though.