A Pixel running stock AOSP with F-droid and Chromium is the bleeding edge of what's possible with open source. There's no better UI/UX in existence and the tragedy of it all is that outside of Android developers and software engineers most people never get to experience it at all.

The reality is that Librem is unnecessary because we have F-droid. There's nothing wrong with F-droid and as time goes on more mainstream apps will continue being brought over.