Your older system may have saved the files in a temporary format that your file manager does not normally recognize. Your best bet before you do any more damage is to try scalpel, but make sure you use the right version for your system. See the post at the link below and look toward the end of it.
https://www.linuxliteos.com/forums/tutor.../#msg33823
TC
https://www.linuxliteos.com/forums/tutor.../#msg33823
TC
All opinions expressed and all advice given by Trinidad Cruz on this forum are his responsibility alone and do not necessarily reflect the views or methods of the developers of Linux Lite. He is a citizen of the United States where it is acceptable to occasionally be uninformed and inept as long as you pay your taxes.