I went into the files application then "Device name" -> "Android" -> "data" -> "app.vanadium.browser" -> "files" -> "Download", and in there, it's a 70MB big "hidden" BIN-file that has the same creation date as when the os was flashed.
I compared this against two other instalations, but it dosen't look the same on the other installations.
Is this a "normal" file and if so, what does it do?