I find Apple Music more convenient since I have an apple ecosystem as well, glad ur making the switch!
Update us if u get it to work
It’s not under the default settings, you need to setup a shortcut using the shortcuts app, I’ll show mine it’s very simple, once u make the shortcut then u can select it if u scroll down to the bottom of the list in the back tap menu, I don’t have Spotify so I can’t say anything specific but I’d assume that you can make shortcuts for it as well
I use triple tap with a shortcut to add the current playing song to my library, makes adding new songs while driving a breeze
OP has 2 balls