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Spotify Messages can reveal your profile to anyone you've ever shared music with
(www.androidauthority.com)
Icon base by Lorc under CC BY 3.0 with modifications to add a gradient
Surprisingly many people wanted it, as Spotify first launched with such a feature before being removed many years ago. They want to share music even faster with no system app selection popups.
For example, the share sheet on Android is still terrible. Something that could be fixed by adding a way to customize it quickly (whitelist a few apps and manually pin+sort a few contacts/apps)