Hi there, @bardno! Help's arrived!
To check if you created your account using Facebook or using an email/username & password, click the downward arrow next to your profile > Settings > Social. If you see an option to Disconnect from Facebook, your account was made using an email/username & password. You can press that, then your Facebook account is A-OK to be deleted 🙂 If you don't see that option, it means that you've created your account using Facebook.
Find out how to use Spotify without Facebook over here: https://support.spotify.com/article/i-want-to-use-spotify-without-facebook/ 🔍
Cheers!
/T
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…