Curios...why can I sign on with the Droid Lemur app, but not the Google Play?

I love free software, but my wallet keeps my with a cheap Google phone...so, I watch what I do here, but don't worry about "software freedom"...there is a Lemur app in Google Play, and when I sign on, it just spins and spins and...you get it.

So, I jumped through the hoops to allow F Droid on my phone...and here I am all signed in! 😊