This is correct, but not what most people think. For example, memory leaks could be considered bugs and it is easy to leak memory memory in safe rust on purpose.

Memory leaks are usually not disastrous for security, mostly an issue for availability, sometimes.

Explain how a use after free could occur in safe rust, because to my knowledge, that is exactly the kind of thing rust does protect against.

There isn’t a reason you can’t use those same services for downloading any content you want. If you are using a front end of some kind, you can just try sourcing the content yourself and using a music streaming app. It’s been awhile since I’ve looked into it, but there was subsonic. Also, most of the video servers like emby and plex also support music.