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Apple Music isn't the best streaming music service — it's just the least annoying
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
If you want to register a laptop with the apple business manager you have to use the configurator mobile app, so not even having another apple pc is sufficient, to set up a mobile device you have to use the configurator desktop app.
https://support.apple.com/guide/apple-business-manager/add-devices-from-apple-configurator-axm200a54d59/web