Yeah I've been running autosaves for my new set up while I work out which things crash Reaper on Mac (turns out... a lot. haha)
I agree that folder management is not a strong suit of reaper.
These autosaves could be grouped into folders, within one master folder, for each day or per session.
Just not useful the way they are currently saved.
Total nitpick but it also irks me to see 'impulses' with a lower case i in my audio files folder.