Google has a history of this. I always confused the Play Store and Play Music apps. Cyan Triangle vs Orange Triangle.
I just gave this a test trying to find google drive as fast as possible. My eyes first stopped on google home since it’s the exact same colours and mostly the same shape.
The only thing that I would confuse Google Drive with is Google Chrome, because that one actually looks like a disk
Except for Keep! It's the only one that gives an idea what it does, virtual post-it notes.
I disagree, I bet people would assume it is something similar to Home because it has a lightbulb.
You won't have to worry about that in a couple months, since Google Play Music won't exist anymore.