Point taken, guess I remembered it wrong. But if you take a look at the arch wiki, they say that your mentioned client is actually not official.
This article is mainly about the semi-official, proprietary Spotify for Linux client, which is developed by Spotify’s engineers in their spare time and not actively supported by Spotify.
Spotify does have an application for Linux, if you’re gonna harp on about facts you should at least stick to them.
Point taken, guess I remembered it wrong. But if you take a look at the arch wiki, they say that your mentioned client is actually not official.