Andriod and internal memory

[athegn]

What is the current position, as at September 2018, of Andriod mis reporting the amount of internal storage it uses?

I have, several times, used the work around of uninstalling Spotify but it soon comes back and reports it uses all my spare internal memory even though I store every download on my large external disk. So my phone then tells me I have run out of internal storage space!!!