I just ran a batch rename script in the console. What's so bad about this? I forgot that I had closed the previous console, which caused Win+4 to open a new one at the default location. Which is my home folder.
"Desktop"? Nah, you mean "file4.png". "Downloads"? No, that's "file6.png". "rclonesync-V2-master"? That's "file19.png" now.
Luckily I was able to restore it all, except for one folder, containing unreadable files with names like "data_0". I hope I didn't need that. And luckily it skipped all hidden files and folders.