Check out these guides for a visual walkthrough on setting up cross-saves or managing your files:
Using Cross-Save can "pop" trophies on the second device. If you earn a Platinum on PS3 and download that save to your Vita, the corresponding Vita trophies will often unlock automatically, giving you two Platinums. Manual Backup and File Locations sly cooper thieves in time save file
The Sly Trilogy (Ps3) games save data won’t load onto Ps5 stream Check out these guides for a visual walkthrough
Here are a few draft options for a post, depending on your goal. Option 1: The "Cross-Save Master" Guide (Informative) sly cooper thieves in time save file