There's currently one for the dolphin file manager. You can try to use that as reference for the nemo file manager (which mint uses)
https://github.com/OverloadedOrama/dolphin_pxo_thumbnailer/tree/main
Mint XFCE uses Thunar, unfortunately. I just installed Dolphin and some extra Cmake modules, but it keeps throwing errors probably because I'm not on a native KDE environment. Hopefully, a version for Thunar can be made. It would really make my day! Thank you for all your help. I really appreciate it.