In this gist, you can find the steps to run Minecraft 1.16.4 natively on Apple Silicon (AS), without needing Rosetta 2 translation of the dependencies (mainly LWJGL and related libraries).
While it's possible to use a launcher like MultiMC to have a prettier way to run the game on AS, it requires installing even more dependencies (like QT) which take time and are difficult to distribute. Therefore, I've put together a command line-based launcher tool using a couple shell & Python scripts.
To get up and running quickly, follow the steps below. Otherwise, for more detail, watch my YouTube video.