Yes, that can be. I also remembered that I had created a swap file. Maybe that is deducted from the available space. That also makes sense, because the swap file is not usable space.

But my swap file is 16 GB. And no matter if I calculate with 16 GiB or 16 GB, I don’t get the displayed partition space.

Thanks for pointing me into this direction.

When I use an online calculator to convert Gibibytes to Gigabytes, I get this result: 634.8 GiB are 682 GB. So, exactly the size that the Gnome-Disk-Utility shows.

The App Stacer tells me 624.2 GiB. When I convert this into Gigabytes, I get 670.3 GB. This size is also shown in the Pop_OS file manager.

So, in conclusion:

• fdisk command and Gnome disk utility are showing 634.8 GiB / 682 GB.
• Stacer and file manager are showing 624.2 GiB / 670.3 GB.

One step closer… Now I just need to figure out why two apps are showing too less storage space compared to the other ones.

Around the 2000s I hosted a Shoutcast server that played a playlist of about 30 punk rock MP3’s on continuous loop. As far as I can remeber, it was running on a Win2000 machine. Yeah - Pirate Radio 😆