If your goal was to make a worse version of android, that would be a smart play.
But mobile linux can be more than a dumbed down mobile OS. Writing apps in this way makes it capable of "convergence", which means it can run a full desktop OS.
We don't need to reinvent anything, just adapt desktop programs to a smaller screen. You can still run java programs if you prefer using a slow, overcomplicated programming language. However I will stick to GTK4.
But mobile linux can be more than a dumbed down mobile OS. Writing apps in this way makes it capable of "convergence", which means it can run a full desktop OS.