This is about the size of virtual disk of the Linux VMs this app can create in the newer versions of Android - and has nothing to do with actually accessing all of Android's internal filesystem.
I don't think this will be useful in the long run.<p>Using termux to ssh into my dev box already gets me access to a full Linux machine. I also think it's preferable relative to what Google is doing here creating a VM under a VM with weird bugs.
Maybe this could become a solution to the shitshow of a problem with Android APIs that make it impossible for any music player app to let user delete locally saved music files?