I worked in a company which ran everything down to MS-DOS

There is Spotube which does that, just not on IOS

Yes

There is no free ad free Spotify on IOS to my knowledge. I recommend Brave browser for ad free YT/YTM/Soundcloud with offline playback. Or Yattee for just YouTube. Another option is the Swisscows search engine which has a integrated ad free music (probably also uses ytm)

Anyone know the title?

Isn’t stopping this exact thing their reasoning to why they can read all your messages?

The OS part is open source, the Steam part isn’t. This is also true for Chimera OS and similar distros