Rosetta 2, as everyone has said, is most definitely available for any Apple Silicon system. It isn't installed by default, but you should be prompted to download it as soon as you attempt to install an Intel app. If this is not happening for you, then I would suggest downloading
Cyberduck (even if you don't need it), then reboot your Mac and once rebooted install and run Cyberduck.
I'm suggesting that purely because that's the app which triggered the Rosetta 2 install for me, when I was setting up my M1, so I know it definitely works.
Just to be clear for anyone else reading this, as has been said further in the thread and in case my comments above haven’t clear enough...... what can I say, I don’t sleep much
This is in no way, shape or form a replacement, substitute or alternative for Rosetta 2. It is merely an Intel based app which, for whatever reason, seems to reliably trigger the installation of Rosetta 2 from Apple, for myself and some friends/family, when you install the Cyberduck app.
Cyberduck itself is a multi-function FTP, WebDAV, libre server, cloud storage browser and so on and so on, app, which I have nothing to do with, but highly recommended if you need a program of that sort. You can get a free version from the website, but please purchase on the AppStore, or donate to the developer. There’s been a lot of work done in this app for many years now.