The AArch64 desktop experiment started in 2020 with the Macbook M1 and it ended in 2026 with great success with Apple phasing out support for Intel.
It is called Apple Silicon.
Which is somewhat useless because it doesn't properly support ACPI/UEFI so that you can boot other operating systems
If you think running a Linux desktop on an Ampere is bad, try running it on an M5 Mac!