The image on the right is the icon that shows up in control center for “NFC Tag Reader”, which appears by default in the current (and previous) iOS 14 beta. Every time I see it I do a double-take, thinking that Spotify has somehow weaseled its way into control center of its own accord. Iconography here seems very short sighted. I had to hide it.
Spotify’s icon even more closely resembles typical NFC icons on Android phones, in which the waves usually also expand directly upwards. Apple’s is better in that regard.
Some device icons have the ‘source’ of the waves be the letter ‘N’ or be ‘NFC’ but I assume Apple rejected that because most people don’t know/care what NFC is or means (or use this alphabet - the #1 iPhone market is China).