My phone shows that I only have 1.3 GB of free space out of 64 GB (62.7 used), but the category usage only adds up to roughly 45.2 GB. Where is the other 17.5 GB? In Oreo I believe the cache is automatically cleared, so what is it? Thanks
App storage isn't accurate on Oreo for me, doesn't show app cache as using app storage.
For example my apps were showing 12.3Gb used, however Google Play Music had nearly 4Gb of music downloaded. I deleted that music, have more space on my phone, but app usage is still at 12.3Gb used.
Odds are a bunch of your apps have downloaded files and/or have cache that isn't showing up as app storage.