Hi @schlicki2808
That's an interesting question.
My opinion is to do what is best for you.
But I will nuance this.
There are features like the swipe from bottom that are easier to do with a native QML app.
HTML app are considered native as far as they are designed for Ubuntu Touch, but using C++ is faster than Javascript and there are tons of libraries one can use to improve their app.
My idea is that HTML apps might be less optimized and maybe more resources hungry. But I might be wrong about it.
Pure QML apps use Javascript for the processing.
C++ is better and closer to the OS.
HTML I imagine uses QtWebview or such to render HTML which should eat a bit of RAM and CPU power...
For "simple" apps we won't probably notice the difference.
For more power consuming apps, C++ libraries is the best IMHO.
Regarding the visual aspect (which I believe is the core of your message) I think each developer has their own style and I'm not sure if the techno used has such an impact compared to the design choices of the developer.
But I might be completely wrong as I only have experience with QML.
Maybe Joan might have a better take/answer on this.