If you need to run x86 Linux software on Apple Silicon, the better option going forward will be to run an ARM Linux VM and use Apple's Rosetta for Linux to run x86 software on the ARM Linux, rather than having the kernel also running under emulation.
Since Rosetta for Linux was coerced to run on non-Apple ARM Linux systems almost as soon as it shipped in developer preview builds of the upcoming macOS, it would not be surprising if Asahi ends up making use of it outside of a VM context (though that may not comply with the license).