In the Debian GNU/Hurd case it’s even less practical due to the many limitations of Hurd and its primitive hardware support.
Given the Hurd limitations, Debian GNU/Hurd is mostly practical in VMs.
Debian GNU/Hurd is currently available for i386 and can build around 65% of the Debian archive.
Since the prior Debian GNU/Hurd release, APIC, SMP, and 64-bit support has improved a lot but is still a work-in-progress.
Debian GNU/Hurd has improved a bit over the past decade since last time testing it but is still very much limited and niche compared to Debian GNU/Linux.
https://www.phoronix.com/news/Debian-GNU-Hurd-2023