I too ran into an Android Wear watch face that mimicked the Pixel lockscreen. However, it was priced X INR(Indian Rupee) per year in my country and was decently cheap. However, I soon ran into another app, which was a one time purchase, that did what it did mainly(sync and show phone and watch battery on each other) and worked on most lock screens. So the latter was a proper kind of app design amd atleast not subscription hell.