No, that's not possible. Rosetta doesn't in that way translate "an Intel Desktop app at install-time, to an Apple Silicon compatible app". What it does is that it translates x86 CPU instructions to ARM CPU instructions, which means that it doesn't change the fact that it is a macOS app. It doesn't translate anything to a general Apple Silicon app, as that's not really a think. It will still be a macOS app just like before, just that Rosetta will translate the CPU instructions to make it possible to run on this new (for macOS) CPU architecture that the app was not compiled for. iOS apps will be able to run on the new Apple Silicon Macs because Apple has implemented specific support for that, not only because it will run on the the same CPU architecture. That is only part of it.