Only arm64/aarch64 operating systems I know are GNU/Linux or Mac OS X. I doubt the iPad is strong enough to run a usable Mac OS X virtual machine, and I don't see a ton of value running either a Linux distribution as CLI ("headless") or with a GUI on an iPad as an app in a window?
I use an app called "iSH" which gives you an x86 Alpine Linux distro and a shell you can play around with. It's pretty useful whenever I need to ssh into something, and if you're patient you can actually do some programming on it with vim or whatever text editor you want. Even clang works!
Only arm64/aarch64 operating systems I know are GNU/Linux or Mac OS X. I doubt the iPad is strong enough to run a usable Mac OS X virtual machine, and I don't see a ton of value running either a Linux distribution as CLI ("headless") or with a GUI on an iPad as an app in a window?