I am running SD8 in a Parallels vanilla VM. I installed SD8 this morning and have done a couple of restarts since.
When SD8 starts it explains that it needs to be granted Full Disk Access. I have done that but, it still pops that dialog.
The trouble seems to be not Full Disk Access but, “Files and Folders” access. Here is what the relevant pref pane has:
There is no checkbox beside SD8. So, it is not possible to grant Files and Folders access. Perhaps there is a permissions issue ? I’m stumped.