Ubuntu 25.10's Only Supported RISC-V Platform: QEMU Virtualization

Back in June it was announced by Canonical that for the Ubuntu 25.10 release they would be raising the RISC-V baseline to the RVA23 profile even with barely any available RISC-V platforms supporting that newer RISC-V profile. That change is still going ahead and leaves Ubuntu 25.10 on RISC-V currently only supporting the QEMU virtualized target...