Earlier quoted context omitted.
I think it’s APFS that’s the cause of my biggest frustration, but I’ve not seen anyone else complain about. I normally run with about 50gb free space. After three to four days, I’m normally down to about 3gb and nothing will get it to show back up, other than a reboot. I’ve even run a test which supports this - downloaded 35gb of files, deleted them and emptied the trash. Same thing... space is missing till I reboot.
Do you have the Time Machine enabled? I also have this problem in Sierra. If my Time Machine HDD is not connected, it stores the backups locally. I can only reclaim space if I disable the Time Machine and restart my mac.
> In macOS High Sierra, Time Machine stores snapshots on every APFS-formatted, all-flash storage device in your Mac or directly connected to your Mac.
I'm curious how it's implemented? Does it use whole-filesystem snapshots? Some discussion: https://forums.developer.apple.com/thread/81171