Using a PowerBook G4 Today (2019)
blog.dbmiller.org
blog.dbmiller.org
As certain people now foresee a massive architecture shift towards ARM, even on desktops, within the next decade, I wonder how this question will be answered 15 or 20 years from now. I am inclined to believe that amd64 units will still be useful in a decade and a half, even if no longer the most commonplace machines. But maybe that's just my bias from living in the moment, and we'll all be building ARM ServerReady rigs for our future Linux workstations.
I'll also add, as an addendum, that it was with debian-ports that my laptop came closest to being useful, but both it and Void came with many compromises at the lowest levels and both are a far cry from what you could eke out of even the most commodity-level of x86 laptops of the time.