

I’m with you that he doesn’t strictly need a gpu, but if the price is right (free from old gaming PC, cheap from a friend’s old gaming PC, cheap old workstation card, etc) I stand by that he probably wants one. A lot less fussy, a lot more capable, nad nvenc does better quality encoding at lower bitrates (and probably less power too if you take into account time spent encoding at full tilt.)
The support isn’t exclusivity for native 32 bit cpus, it’s for 32bit libraries that compatibility applications like wine/proton depend on to run 32bit windows executables