Comment by BoppreH

I managed to add a Shazam Now button using a Shazam widget, not a shortcut. Give it a try!

I just installed Octopi on this thread's recommendation. Pretty good so far, and I'm happy to remove the useless Google search bar from the bottom of my Pixel (I use Kagi and Firefox, neither of which can be configured on that bar). Also satisfied how you can resize widgets to any size, regardless of what the widget asks for.